Useful Android apps with minimal permissions required to get the job done

No App Name Function
1 Chat Secure Secure Chat Client (No more on playstore). Use instead of Hangouts. Note SecuXabber is better, but no more on play store. Install it from the SecuXabber sourceforge page
2 K-9 Mail Email Client supports PGP encrypted emails with OpenKeyChain
3 Ted Simple text editor. Replace Notes.
4 encdroid Encrypt data on cloud storage. Supports Dropbox, Google Drive, local folders
5 Kaspersky Antivirus for Android. The paid version is the best out there. Here’s how to buy it on Google Play Store.
6 Malwarebytes Desktop malware detector available for Android
7 JStock Stock Quotes with reminders at prices.
8 Simply Done To do list. Supports SMS scanning to add to ToDo list
9 AndFTP FTP client for android
10 FTP Server No more on playstore. FTP server for android phones. File Transfer
11 aSQLiteManager SQLite database manager
12 Firefox Web browser for android
13 KeepassDroid Keepass password wallet on android. Best password manager
14 Linux News Linux news aggregating app
15 WebUpd8 No more on playstore. News from WebUpd8
16 Network Tools Network tools for ping, traceroute servers
17 OI File Manager File Manager. Free, no nonsense file manager
18 SaveAPK No more on playstore. Saves APK files. Use to create app backups
19 OpenSudoku Sudoku game
20 Pencil Sketch Create pencil sketch from photographs
21 50 Pushups No more on playstore. Great motivator to do 50 push ups in 30 days.
22 SIM Card Info Display SIM card info (Good for nano/micro SIMs)
23 Terminal Emulator Best terminal emulator on android by Jackpal
24 Units Units converter. Beats all hands down
25 VLC All in one media player. Now on android
26 Wifi Analyzer Analyze wireless network range
27 Word Search Word search game on android
28 SMS to Text No more on playstore. Backup your SMS messages to a file
29 Frozen Bubble Father of all bubble shooter games
30 ArchiDroid No more on playstore. Opens any compressed format files
31 Classic Words Scrabble like game for hours of brain entertainment
32 Open Keychain Open Key CHain – PGP implementation on Android. Works with K-9 Mail
33 ConnectBOT SSH client for Android
34 Millimeter Easy to use Ruler app for Android
35 QR Code Scanner QR Code Scanner, not bloated, no ads and free
36 QPython No more on playstore. Python interpreter for the Android
37 TORCH Simple Torch App. Nothing fancy, works on non-LED Flash phones and very fit for purpose
38 OS Monitor Lists process, network connections and more of your phone. Best app to detect what your phone is doing.
39 WPS Office Best word processor so far on Android. Edits much faster than the others. No lag.
40 Webget No more on playstore. Wget for Android. Download anything just like you would with wget on Linux
41 Sketch Sketch App from Sony Mobile Communication. Allows drawing as well. Has a lot of clipart too
42 Notification Analyser No more on playstore. Statistics of all notifications of apps on your phone
43 SpiderOak Secure zero knowledge encrypted cloud storage service. Currently, only supports file uploads from PCs. Android devices can only download files
44 Netspeed Indicator Displays network speed in the status bar at all times. Best in class app to know if network is working
45 Bass Booster Best Bass Booster. However, if your device has an in-built audio effects feature, use that
46 Odometer No more on playstore. Use this to track your walks or jogs.
47 JPG2PDF No more on playstore. Converts JPG files to PDF. You can also do this with photographs taken with the camera
48 Media Scanner Sometimes, music players cannot find music files. Use this to scan storage for media files and build the media database
49 RSO EDIS-Lite Displays all emergency events happening worldwide. Best if you need to know about emergencies worldwide like typhoons, fires and more
50 Cleaner Use this to clear junk files, cache and reclaim RAM on your Android device
51 Rocket Player Music Player. Use if you do not have one on your device
52 Alarm Clock Use this clock on the Moto X (Gen 1) if the built in Alarm App on the Moto X gives a problem
53 Audio Recorder by Sony One of the best audio recorders
54 Emergency Contact No more on playstore. This application displays emergency contact on the lock screen. Good to use on phones where the ICE feature is not available
55 Telegram Messenger app like WhatsApp, offers more security, secret chats, self-destruct messaging and ability to delete account completely if you do want to use it anymore
56 Autodesk Pixlr One good images manipulation tool on Android. Good for phones with larger memory
57 Photo Editor This made it to the list as it was the only one able to invert colors like black to white
58 Birthday Reminder Birthday Reminder that gives alerts based on the birth day entered in Contacts database. THis was the most non-intrusive of all reminders and it works well
59 Linux Commands Linux commands app. For Linux Administrators and Users
60 File Explorer by Speed Software Good file explorer. Use in place of OI Explorer as it has capability to work with files on Google Drive. Also supports multiple Dropbox accounts
61 Johnson & Johnson 7 minute workout No time for exercise? Use Johnson & Johnson 7 minute workout. Simplest app for a quick workout. Read about why 7 minute workouts are good for you at https://www.positivehealthwellness.com/fitness/7-minute-workout-effective/
62 TeamViewer for Remote Control Remote control and provide support to users using Team Viewer from an Android phone. Listed here because it is an essential for remote support
63 My Local Groups Allows creation of contacts in local groups that do not get synced with online services like Google. Very good if you do not want to share your contacts information outside of the phone
64 Pedometer Very good non-intrusive Pedometer for android devices. Does not ask for Location Access
65 My Fitness Pal Calorie Counter
66 Clean Music Player Bare bone and completely non-intrusive music player. No special permissions required at all. Couple with Desaxed Studios Bass Booster if you want an Equalizer
67 Netguard Firewall (no root) This is, by far, the best among all non-root firewalls on the Google Playsore. Worth every penny paid
68 Open Camera One of the best open source and non-intrusive camera apps for Android. Supports white balance, focus and more. Wonder why I did not discover this one earlier!
69 AF Wall+ Rooted your phone? Here is the better firewall apps for your rooted phone. Will not work without root. Blocks packets by app and connection, including the ability to have custom filters
70 Epson iPrint Epson has this wonderful utility that works well with it’s all-in-one devices.Who said only HP was the printer king?
71 Java Examples Java Examples to help one quickly brush up knowledge of Java Programming
72 Financial Planner Great financial calculator that is easy to use
73 Turbo Editor Editor for Programmers
74 Lawnchair Launcher Highly customizable launcher for Android devices. Everything customizable.
75 Xodo PDF Reader and Annotater Excellent application to open PDF files and annotate them. Good to fill forms, comment on PDF files and proof read.
76 GnuCash Finally a almost thorough port of the GnuCash Application for an Android device. Use this to manage personal finances.
77 Learn Java by Sololearn Looking for an application on Android devices to Learn Java? This is it. One of the best tutors. Sololearn also teaches other programming languages.
78 My Funds – Portfolio Tracker My Funds Portfolio tracker allows tracking of stocks and mutual funds. The advantage over JStock is that it tracks Mutual Funds Net Asset Values (NAV) whereas JStock only tracks Stocks. However, My Funds – Portfolio Tracker also tracks Stocks, but only displays the last traded price the next day. That is true for Mutual Funds NAVs too. If you need to track real-time, and are not afraid to share your data, try using valueresearchonline.com or MoneyControl
79 Onkyo HF Player Audio player for audiophiles. This app allows you to play high resolution audio on your Android device. The sound quality is too good and the preset equalizer settings are ultimate. If you use a good quality headset and Onkyo HF Player, you can ignore the default player on your device.
80 @Voice Aloud Reader Podcasts are great as they save us time while walking, exercising, or doing something else. This app is a great tool to read aloud PDF documents. Gives a podcast type experience and very useful. Found it to be most non-intrusive among the others.
81 Banking Calculator Easiest and accurate banking calculator. Use it to compute accrued interest for Fixed Deposits. Most interesting feature is ability to save the results.
82 Document Viewer Good utility to view XPS files that you create on a Microsoft Windows computer
83 Spirit Level Utility to display leveling of a surface. Make sure the bubble is at 0!
84 909 Drum Sequencer Play the drums. Reminds me of Hydrogen on a Linux computer
85 Panagola SBS Video Player Allows you to watch movies using ANT VR headgear
86 TTS Reader Pro Reads out loud text
87 Snapseed Photos touch up tool like Pixlr
88 Microsoft Excel Need we say more
89 Blue Light Filter by Panagola Filter blue light from phone display if you work at night. Best app and no eye strain
90 Androrec (no more on playstore) Records Audio
91 Poweramp Poweramp Music Player – Most mature in terms of sound effects and quality
92 SimpleMind Powerful mind mapping application. Has a Windows Desktop version too that runs very well in Crossover Office
93 Schematic Mind Powerful mind mapping application. Use if you do not need a desktop version
94 Latest Laws India Use to view latest laws for India
95 Mint Business News Mint newspaper and articles
96 XDA The Go To site for everything related to Android ROMS, etc.
96 Ankidroid Flashcards Best Flashcards application is a memory jogger. Available on Linux too
97 DND App by TRAI DND App by TRAI to register, report Unsolicited Commercial Communication i.e. unwanted SMS and calls
98 Citizen Calculator App Citizen Calculator application for android. Emulates the calculator CT500, CT512 very well
99 CPU Speed Test Test CPU Speed of an Android Device
100 Pomodoro Timer Lite Use this to take breaks. Pomodoro Timer Lite most appropriate
101 Dev Check Check device hardware. Displays even unheard of information and the best app that does a great job
102 Netstat Plus Displays all open network ports and the apps that have established connections or are listening on those ports
103 Spy Monitor Similar to Netstat Plus, but goes a step further, showing server locations on a map
104 Loop Habits Great app to enable change in habits over time
104 Firefox Focus Minimalist not-intrusive Firefox Focus web browser. Do not expect bells and whistles, but plain old web browsing with no trackers enabled
105 Nova Launcher Fed up with the default Google Now Launcher on your Android device? Use Nova Launcher to customize look and feel completely
106 Messaging Classic Vanilla Android SMS Messaging App. Use if Android Messages app gives errors
107 SD Maid Keeps Android phone storage clean. Gets rid of orphaned files
108 National Digital Library Digital Library of books via the National Digital Library
109 Fuelio Car Fuel and Maintenance Tracker
110 Kaspersky Mobile Security Kaspersky Mobile Antivirus: AppLock & Web Security
111 Solid Explorer Solid Explorer is a very powerful file manager for Android devices. Supports encryption and hidden folders
112 Memory Training Best app to train the brain to recognize visually. Level 2 is really tough
113 Umang One stop app for all government services on your Android
114 Smart Office Another Office Suite for Android. Powerful and small.
115 Task Manager Powerful Task Manager for Android
116 Offline Survival Manual Offline Survival Manual. Good for trekkers or hikers
117 Municipal Corporation of Greater Mumbai Use this app to connect with the municipal corporation
118 Cyber Law and Data Privacy App Use this app to learn about cyber law and data privacy in India.
119 Contacts App by Google (New) Revamped Google Contacts App. Works seamlessly to sync and update Android Phone Contacts
120 Live Law Keep track of latest law news
121 Sound Recorder Very small size sound recorder. Simple, no bells and whistles
122 Digilocker Digilocker by Meity India
123 MTP App Mumbai Traffic Police App. One of the best apps by law enforcement.
124 mParivahan Regional Transport Office App
125 Sky Map Simple and sweet stellar viewer. Point to see what’s above you in the sky
126 Code Scanner (no ads) QR Code Reader, very simple with no ads and does what it says
128 Lekh Diagram Lekh Diagram is a simple and effective flowchart maker for Android
129 My Cardiac Coherence Great app for respiratory exercises
130 Cardiac Coherence Respiration exercises(no ads)
131 Breathly Breathing exercises app
132 Breath Easy Breathing exercises app
133 AlReader ePub book reader