Mountain Project vs Simple Interval Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mountain Project
Discover and navigate to outdoor climbing areas, and find specific routes with detailed filters. Access route beta, photos, and topos offline, and view climbing area statistics. Connect with other climbers in the forum, track your progress, and create to-do lists.
- Find and navigate to climbing areas
- Sort routes by discipline, difficulty, and rating
- Search 155,000+ climbing routes offline
- Download route beta, photos, and topos for offline use
- View climbing area route statistics and critical info
- Connect with climbers in the forum
- Track attempts, sends, and create to-do lists
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Beyond the Guidebook: The Definitive Rock Climbing Resource. • Find outdoor climbing areas near you, and navigate to them, using the map. This super-handy new feature is one of our personal faves. • The much requested route finder: Easily sort routes by discipline, difficulty, star ranking and more. If a 4-star M9 is your thing, we'll help you find it. • Search our entire database of 155,000+ climbing routes, even offline. • Download route beta, photos, and topos state by state for offline use — because the best crags often have the worst reception. • View a climbing area’s route stats (how many 5.11s are there?) and critical info (when is the raptor closure again?) in a single glance. • Chat, ask questions, or put out a call for partners in our forum. • Rate routes and photos, keep track of attempts & sends, or make a to-do list • It's free to download and free of advertising too. Everything you need, nothing you don't.
Simple Interval Timer
This app provides a straightforward interval timer for various training types like running, cycling, and HIIT. Customize sets, action, and break durations for a personalized workout experience. It runs in the background and saves recent configurations.
- Customizable sets, action, and break durations
- Plain and simple design
- Saves last 5 configurations
- Runs in the background
- iOS screen dimming prevention
- Apple Watch integration with heart rate monitoring
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Simple Interval Timer (SIT) can be used for any kind of interval training, such as running, cycling, HIIT sessions (including Tabata method), stretching, etc. SIT is exactly what you would expect. An interval timer, which is easy to set up and use. It features a nice plain design, with no unnecessary controls. Adjust Number of Sets, Action and Break duration to your needs and you are ready to go! On the iOS an extra switch control allows you to prevent the screen from dimming. SIT remembers the last 5 configurations you have used. Swipe left across the Settings screen to switch to another configuration. SIT can run in the background, while you are playing music, watching videos or doing anything else on your iOS device. SIT Watch features the same simplicity as the iOS app while offering the same functionality, plus it will measure your heartbeat during the workout sessions. The recordings will be available in the Apple's Health app. SIT Watch runs independently of the phone, so no need to have your phone around during your workouts (although you will need your phone during the very first time you launch SIT watch). SIT lets you avoid any tedious set up and focus on your training!
Screenshots
Verdict
The clearest difference is review sentiment: Simple Interval Timer at 85% against Mountain Project's 41%. Simple Interval Timer also leads on rating (4.9 vs 4.6) and iOS requirement (14.5 vs 16.0). Mountain Project's advantage is in-app purchases (none vs 4) and ads (none vs shown). On price, ratings volume 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
Both are free to download. Simple Interval Timer sells 4 one-off in-app purchases. Mountain Project asks for nothing beyond the download.
Simple Interval Timer holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 4.6K and 5.4K respectively. Written reviews point the same way: 41% of Mountain Project's written reviews are positive against 85% of Simple Interval Timer's.
Mountain Project ships an update every 3 weeks, Simple Interval Timer every 8 months. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.
| Parameter | Mountain Project | Simple Interval Timer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (4.6K ratings) | 4.9 (5.4K ratings) — better |
| Positive reviews | 41.1% of reviews | 84.7% of reviews — better |
| Number of ratings | 4.6K | 5.4K — better |
| Update frequency | Every 3 weeks — better | Every 8 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPod, Apple Watch — better |
| Requires iOS | 16.0 | 14.5 — better |
| Further details — not scored | ||
| Size | 79 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Adventure Projects Inc. | 0FF |
Customer experience
Mountain Project
Simple Interval Timer
User reviews
Mountain Project
From 4.6K App Store ratingsWhat we love
- 🗺️ Extensive database of climbing routes
- 📚 Detailed route information and beta
- 🗺️ Offline access to downloaded areas
- 👥 Helpful community contributions
- 📸 Useful photos and visuals
Room to improve
- 🐛 Frequent crashes and bugs
- 🗺️ Inaccurate or outdated map information
- 🔍 Inefficient search and navigation
- 💰 Excessive advertising and promotion of other apps
- 📝 Inability to add comments or photos from the app
Simple Interval Timer
From 5.4K App Store ratingsWhat we love
- 👍 Simple and easy to use
- 🚀 Efficient and straightforward
- 💰 Actually free, no paywall
- 🔊 Unobtrusive audio cues
- 🎶 Works well with music playback
Room to improve
- 🐛 Occasional bugs and crashes
- ⚙️ Limited customization options
- 🔋 Compatibility issues with newer iOS versions
- 🔍 Difficulty deleting/managing saved configurations
Bugs and requests
Mountain Project
Reported bugs
5 issues- App crashes when opening routes or areas
- Map not showing all available climbs
- Incorrect date recording for ticks
- Inability to delete downloaded areas
- Login issues and account sync problems
Requested features
5 requests- Add ability to add/update routes and areas
- Implement better offline map functionality
- Improve search and filtering options
- Add user profile and route tracking features
- Enhance community engagement tools
Simple Interval Timer
Reported bugs
3 issues- Timer stops working when screen is locked
- Countdown beeps not syncing with timer
- Interval times not accurately tracked
Requested features
4 requests- Ability to name and delete saved configurations
- More granular interval time settings (e.g., 1-second increments)
- Stronger haptic feedback on Apple Watch
- Integration with workout tracking apps
In-app purchases
Mountain Project
No in-app purchases
Simple Interval Timer
- Espresso$0.99
- Americano$1.99
- Ad-free version$2.99
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- Caramel Cappuccino$2.99
Questions
Is Mountain Project free?
Is Simple Interval Timer free?
Which has better reviews, Mountain Project or Simple Interval Timer?
Do Mountain Project or Simple Interval Timer have ads?
Which is updated more often, Mountain Project or Simple Interval Timer?
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