Stage Timer vs AcoustiCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stage Timer
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The Ultimate Stage Timer for Every Scenario Whether you're presenting, teaching, coaching, or working out Stage Timer helps you stay perfectly on time. Create customizable multi-stage timers with sounds, colors, full-screen display, and more. Subscription Details: • Title: Savory All Access • Length: 1 year • Price: $39.99 per year and $4.99 per month (auto-renews) • Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ • Privacy Policy: https://docs.google.com/document/d/1b2FQZ_HK2I_6ZBJhiaJw_Vii5aKW9D4dYjGfP9C8efU/edit?usp=sharing
AcoustiCalc
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AcoustiCalc is the ultimate toolkit designed for architects, engineering firms, and acousticians. Instantly calculate the reverberation time (RT60) via Sabine's Formula or estimate the sound insulation of walls using the Mass Law. Premium B2B Features: - Predictive acoustic modeling with interactive graphs. - Expert local database: 300+ materials with Alpha absorption coefficients (125Hz-4kHz) certified ISO 354. - White Label PDF Report Generator for direct client delivery. - Integrated Live SPL Meter. - Metric and Imperial system support. 100% Offline. Zero Cloud. Compliance and industrial secrecy guaranteed. Legal Disclaimer: Simulations are predictive and do not replace certified in-situ measurements.
Screenshots
Verdict
The clearest difference is price: Stage Timer at Free against AcoustiCalc's $3.99. AcoustiCalc's advantage is in-app purchases (none vs 4) and update cadence (daily vs every 6 weeks). On ads, device support and iOS requirement 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
Stage Timer is free to download; AcoustiCalc costs $3.99 up front. Stage Timer sells 4 in-app purchases, starting at $4.99 per 7 days. AcoustiCalc asks for nothing beyond the download.
Stage Timer ships an update every 6 weeks, AcoustiCalc daily. The most recent releases landed on September 26, 2026 and September 22, 2026 respectively.
| Parameter | Stage Timer | AcoustiCalc |
|---|---|---|
| Price | Free — better | $3.99 |
| Update frequency | Every 6 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 17 — better |
| Further details — not scored | ||
| Size | 27 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Fenuku Kekeli | TRIMECH Dhaker |
In-app purchases
Stage Timer
- All Access – Weekly$4.997 Days
- All Access for a month$4.991 Month
- All Access for a year$39.991 Year
- All Access for Lifetime$99.99
AcoustiCalc
No in-app purchases
