Strong vs Interval Timer MAX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Strong
This app helps strength training enthusiasts log, track, and analyze their workout progress. It allows detailed recording of sessions, saving workouts as templates, and provides analytics like estimated 1-Rep Max. Data is synced to the cloud and appearance is customizable.
- Workout logging and history
- Save and group workout templates
- Cloud sync for data backup
- Estimated 1-Rep Max (e1RM) calculation
- Customizable themes and units (kg/lbs)
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App Overview: Strong-er Strong-er is a modern, data-driven mobile application designed for strength training enthusiasts. Strong-er provides a robust platform for users to log, track, and analyze their workout progress. Core Features & Functionality 1. Workout & History Tracking Log Workouts: The primary function of the app is to allow users to record their workout sessions in detail. Workout History: All completed workouts are saved to a comprehensive history, allowing users to review past performance. Workout Management: Users have full control over their workout entries. From a convenient toolbar menu, they can Edit, Delete, or Repeat a past workout. 2. Templates & Efficiency Save as Template: Users can save any workout as a "Template" for quick and easy reuse in the future, streamlining the logging process for routine exercises. Template Groups: To keep templates organized, they can be grouped together, for example, by muscle group ("Push Day," "Leg Day") or workout style. Quick Actions: The home screen features a "Quick Actions" menu, providing immediate access to the most common user tasks. 3. User & Data Management Account System: The app features a full authentication system using Firebase, allowing users to create persistent accounts. It also supports a "guest session" for users who wish to try the app without registering. Cloud Sync: All user data, including profiles, workout history, and templates, is synchronized. This ensures data is backed up and available on any device. 4. Personalization & Analytics Customizable Appearance: Users can personalize the app's look and feel by choosing from different themes (e.g., light or dark mode). Weight Unit Preference: The app supports both kilograms (kg) and pounds (lbs). Users can set their preferred unit in their profile, and the app handles all conversions and formatting consistently. Strength Analytics (e1RM): Strong-er includes a scientific component to help users understand their strength gains. It uses the Brzycki formula to calculate the estimated 1-Rep Max (e1RM) from workout data, providing a more accurate strength estimate, particularly for higher repetition sets.
Interval Timer MAX
This app provides a customizable interval timer for various activities like workouts and meditation. It offers a selection of high-quality sounds to enhance your experience.
- Customizable interval timer
- Workout timer
- Meditation timer
- High-quality sound selection
- Simple interface
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A simple interval timer app for workouts, meditation, or anything else you need. Lots of high quality sounds to choose from.
Screenshots
Verdict
The clearest difference is in-app purchases: Interval Timer MAX at none against Strong's 1. Strong's advantage is update cadence (every 3 weeks vs every 6 months) and iOS requirement (16.4 vs 26.0). On price, rating, review sentiment and ratings volume 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
Both are free to download. Strong sells 1 one-off in-app purchase. Interval Timer MAX asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Strong against 5.0 for Interval Timer MAX. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Strong ships an update every 3 weeks, Interval Timer MAX every 6 months. Both last shipped on September 29, 2026.
| Parameter | Strong | Interval Timer MAX |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 weeks — better | Every 6 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.4 — better | 26.0 |
| Further details — not scored | ||
| Size | 83 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Chad Granofsky | ThaiGenius LLC |
Customer experience
Strong
Interval Timer MAX
In-app purchases
Strong
- Donation$0.99
Interval Timer MAX
No in-app purchases
Questions
Is Strong free?
Is Interval Timer MAX free?
Which has better reviews, Strong or Interval Timer MAX?
Do Strong or Interval Timer MAX have ads?
Which is updated more often, Strong or Interval Timer MAX?
Other comparisons
