Comparison

Noise Tracker Pro vs PRIME 2.O

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Noise Tracker Pro

This app measures environmental noise levels in decibels using your phone's microphone. It provides real-time monitoring, detailed data analysis, and the ability to compare readings with international standards. Ideal for students, professionals, and the public to understand ambient noise.

Highlights
  • Real-time noise monitoring (dB meter)
  • Frequency weighting filters (A-weighting)
  • Measure LAeq, L10, L50, L90
  • Geotagged noise level maps
  • Custom calibration for accuracy
  • Data sharing across platforms
  • Comparison with international standards
Features
Read full description

"Noise Tracker Pro" is a unique sound meter application for mobile phones developed by the noise experts from CSIR - National Environmental Engineering Research Institute (NEERI), Nagpur, India, to give a more specific product or application through continuous research and development efforts. "Noise Tracker Pro" is a handy, essential gadget, highly reliable App, pre-calibrated measurements, and supports frequency weightings. The "Noise Tracker Pro" App is a real-time noise monitoring application (noise meter, dB meter) dedicated to evaluating noise levels in the surrounding environment as professional sound meter performs. This App will use the phone microphone to measure environmental noise levels dB (decibels) and display noise levels on the mobile screen. This smartphone application is a handy tool for the students, professionals, and the general public to know the extent of noise levels in their surrounding environment. The accuracy level may change with the change in the make and model of the smartphone. Hence it is always recommended to calibrate the application with an already calibrated SPL meter to improve the accuracy of measurement by adjusting the microphone sensitivity Features: 1. Performance best fits with calibrated SPL meter 2. Very efficient saved record data management 3. Indicates decibel by digital gauge 4. Quick response on sound level changes 5. Standard fast time weighting 6. Compare the recorded noise level with popular international reference standards 7. A- Frequency weighting filter 8. Measure Equivalent A-weighted continuous sound level (LAeq), 9. I/3 Octave in graphical and tabular format 10. Display SPL, LAeq, Average , Minimum and Maximum decibel values 11. Measure noise descriptors L 10 , L 50 & L 90 12. Display Elapsed time of decibel 13. Create the geotagged map for the saved history data 14. Handy custom Calibration for high precision and accuracy 15. Data storage in the phone 16. One can share the saved and recorded data across multiple platforms such as Gmail, WhatsApp, etc. Recommendations for the 'best' measurement: 1. The smart microphone should not be kept hidden during measurement. 2. The smartphone should not be in the pocket but should be held on hand while noise measurements. 3. Don’t make a noise on the back of the smartphone while monitoring noise. 4. Keep safe distances from the source during noise monitoring; otherwise, it may harm you. **Notes This tool is not a professional device to measure decibels. Microphones in most Apple devices are aligned to the human voice. The smartphone microphone device limits the maximum values due to which Very loud sounds (over ~90 dB) may not be recognized by most of the devices. So please use it as just auxiliary tools. If you need more accurate dB values, we recommend an actual sound level meter for noise measurements.

About

PRIME 2.O

Features
Read full description

### PRIME 2.O: Your Partner in Postal Career Advancement Are you a postal employee looking to excel in departmental exams and secure higher positions in the Department of Posts (India)? PRIME 2.O is here to guide you on your journey to success, using innovative methods and tailored solutions. ### YOUR PATHWAY TO SUCCESS PRIME 2.O is designed to empower postal employees to achieve their career aspirations. We provide structured guidance for departmental exams, improve workplace efficiency, and help you set and achieve professional goals with motivation and clarity. ### WHY CHOOSE PRIME 2.O? - Focused Learning: Designed exclusively for postal employees aiming for success in departmental exams and career growth. - Step-by-Step Approach: Break down complex subjects into manageable steps, guiding you progressively toward your goals. - Innovative Methods: Leverage creative and modern learning techniques to tackle challenges and master new skills. - Holistic Guidance: We emphasize financial planning, career advancement, and strategies to enhance your workplace experience. ### KEY FEATURES - Comprehensive Study Modules: Covering essential topics such as postal rules, regulations, and operations alongside modern technologies like DARPAN, PMA, and IT Projects 2.O. - Mock Tests & Practice Quizzes: Simulate real exam conditions with structured tests and instant feedback. - Performance Analytics: Identify strengths and areas for improvement to fine-tune your preparation. - Career & Financial Guidance: Gain insights into financial planning, goal setting, and effective office management strategies. - Motivational Resources: Stay inspired with expert tips, success stories, and motivational tools to stay focused. - Multilingual Support: Study in your preferred language for better understanding and comfort. ### TOPICS COVERED - Departmental Exams: Comprehensive preparation for MTS, PM/MG and PA SA exams. - Postal Rules and Regulations: In-depth understanding of key acts, rules, and operational procedures. - Financial and Banking Services: Master IPPB, POSB, PLI/RPLI, and other financial services. - Office Management & Leadership: Develop skills for better decision-making, leadership, and workplace efficiency. - Innovative Solutions: Learn to tackle challenges effectively and embrace new technologies. - General Awareness, Arithmetic and Reasoning: Enhance your knowledge of current affairs and reasoning exercises. - Goal Setting & Motivation: Techniques to set realistic goals and stay motivated throughout your journey. ### WHO CAN BENEFIT? - Gramin Dak Sevaks (GDS), Postmen, and MTS employees aiming for promotions. - Anyone seeking financial and career guidance to grow within the Department of Posts. ### YOUR FUTURE, OUR FOCUS At PRIME 2.O, we are committed to transforming your aspirations into achievements. Focusing on your strengths, addressing challenges, and providing continuous motivation, we help you reach new heights in your postal career. ### Download PRIME 2.O app now and step confidently towards your goals!

Screenshots

Noise Tracker Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: Noise Tracker Pro at none against PRIME 2.O's 1. Noise Tracker Pro also leads on update cadence (every 5 months vs every 11 months). PRIME 2.O's advantage is iOS requirement (16.4 vs 18.0). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PRIME 2.O sells 1 one-off in-app purchase. Noise Tracker Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Noise Tracker Pro ships an update every 5 months, PRIME 2.O every 11 months. The most recent releases landed on October 3, 2026 and October 18, 2026 respectively.

Scorecard3 real differences · 6 level
Noise Tracker Pro versus PRIME 2.O: the parameters behind the verdict, then further details
ParameterNoise Tracker ProPRIME 2.O
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 5 months — betterEvery 11 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS18.016.4 — better
Further details — not scored
Size10 MB84 MB
Age rating4+17+
DeveloperSatish LokhandeTagMango Inc

In-app purchases

None

Noise Tracker Pro

No in-app purchases

1 purchases

PRIME 2.O

One-time1
  • Postal Mastery Course$9.99

Questions

Is Noise Tracker Pro free?
Noise Tracker Pro is free to download, with no in-app purchases.
Is PRIME 2.O free?
PRIME 2.O is free to download, with in-app purchases available.
Do Noise Tracker Pro or PRIME 2.O have ads?
Neither Noise Tracker Pro nor PRIME 2.O shows ads.
Which is updated more often, Noise Tracker Pro or PRIME 2.O?
Noise Tracker Pro ships an update every 5 months, and PRIME 2.O every 11 months. Most recently, Noise Tracker Pro was updated on October 3, 2026 and PRIME 2.O on October 18, 2026.

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