Custom Running Intervals vs Interval Trainr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Custom Running Intervals
Create custom running workouts with flexible intervals based on time or distance. Track progress, build training plans, and analyze past runs with detailed results. Your data is private and stored securely on your device or iCloud.
- Configurable time or distance intervals
- Repeatable interval blocks
- Training plan calendar
- Historical run analysis
- Apple Watch monitoring
- iCloud synchronization
- Data privacy
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This is a flexible custom interval timer and training scheduler with historical analysis, and you are the only one who has access to your data! As a runner, I’ve had challenges finding a running timer that can manage my more involved interval combinations. Custom Running Intervals allows you to build variable activities with repeatable blocks of intervals. Intervals can be by time or by distance with 3 intensities - walk, steady, and fast. You can repeat your intervals a specific or indefinite number of times, for a defined amount of time, or for a given distance. With an inexpensive upgrade, you can create as many combinations of repeatable sets in the variations you choose, build a training plan on a calendar, see results of past runs, and export results to other apps. Also, your data is only available to you - even I can’t see it. Your data will only exist on your phone, or in your own iCloud storage if you choose. If you save your data to iCloud (by default), you can view the results on any other iPhone or iPad that shares the same iCloud account. Features: 1. Configurable intervals - distance (miles, kilometers), time (hours, minutes, seconds). 2. Configurable repeat blocks of intervals - # of times (or until stopped), distance, time. 3. Clone activities (use an existing activity - repeats and intervals - as a basis to create a similar activity). 4. Apple Watch monitoring and control and heart rate (iPhone app must be started). 5. Configurable settings. 6. Audio cues by voice, tone, or both (in Settings). 7. Pause, Resume, or Stop an activity, Skip repeat blocks. 8. View current elapsed time, distance, interval progress, overall pace. 9. End an in-progress repeat block (and proceed to the next). 10. Results by interval and repeat block, as well as default distance unit (each mile or kilometer). 11. Results (including steps, time, distance, and pace) available immediately after run. 12. Map view to verify GPS location prior to starting run. 13. Map view of running route in results including markers by mile/kilometer and pauses. 14. Helpful on-screen guide when creating first activity and configuring. 15. Activities and results stored in iCloud for synchronization across devices and data loss prevention. Apple Watch If you have an Apple Watch, you can also start, pause, and stop an activity in progress from the watch. NOTE: the Apple Watch app (included with your iPhone download) communicates with the iPhone app, so the app must be started on both the watch and phone to use the watch app. Apple Watch Features: 1. View existing activity configurations. 2. Start an activity (if iPhone app is started). 3. Pause, Resume, or Stop an activity. 4. View current elapsed time, distance, interval progress, overall pace. 5. End an in-progress repeat block (and proceed to the next). Available Full Features (In App Purchase) 1. Configure an activity with multiple repeat blocks for more complex intervals (standard version allows one repeat block) 2. Add planned training runs on a Training Calendar for a selected custom interval (free version allows up to 5). 3. View and filter a graph of your pace over time for activities (free version allows up to 5 past runs). 4. View the results of your runs on the Training Calendar including a map of the route. weather conditions, elevation, pace, and heart rate. 5. Create repeatable training plans to easily add planned runs to the Training Calendar. 6. Sort your past results by date, total time of run, distance, and pack. 7. Export your results (current or history) in GPX format for importing to other trackers. 8. Fix GPS for anomalies. 9. Import results in GPX format from any tracker app. 10. Track miles run on your pairs of shoes. 11. Manually enter results for a run if you forget to track. 12. Manually edit the time and distance for a run. 13. Share a run with photo to social media and other apps. 14. Track a run on a cruise ship.
Interval Trainr
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Build your workout. Set your pace. Train your way. Interval Trainr makes structured interval training simple. Create reusable workouts using Walk, Jog, Run, Sprint, or your own custom exercises, then let Interval Trainr guide you through each interval. Build straightforward workouts or create more advanced training sessions with repeat groups, warm-ups, and cool-downs. Clear countdowns and optional audio cues help you stay focused without constantly looking at your screen. BUILD YOUR TRAINING • Create and save reusable interval workouts • Combine Walk, Jog, Run, Sprint, and custom exercises • Set precise durations for every interval • Add repeat groups for rounds and circuits • Add optional warm-up and cool-down sections • Reorder and customize your workout at any time TRAIN WITHOUT DISTRACTIONS • Clear full-screen interval countdown • See your current exercise and what comes next • Optional start and transition countdowns • Synchronized countdown ticks • Voice, tone, haptic, or silent interval cues • Choose your preferred system voice and speaking rate • Optional encouragement during your workout • Pause, resume, restart, or stop whenever needed FOLLOW YOUR PROGRESS • Keep a private history of your training sessions • Review completed and stopped workouts • See simple weekly and monthly progress WORKS WITH YOUR MUSIC Keep listening to music, podcasts, or other audio while you train. Interval Trainr provides brief cues while allowing your other audio to continue. PRIVATE BY DESIGN Your workouts, history, and preferences stay on your device. Interval Trainr requires no account and includes no ads, analytics, or tracking. Whether you’re building walk/run intervals, sprint sessions, circuits, or your own training routine, Interval Trainr gives you the structure you need without getting in your way.
Screenshots
Verdict
The clearest difference is in-app purchases: Interval Trainr at none against Custom Running Intervals's 1. Interval Trainr also leads on update cadence (monthly vs every 3 months). On price, 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
Both are free to download. Custom Running Intervals sells 1 one-off in-app purchase. Interval Trainr asks for nothing beyond the download.
Custom Running Intervals ships an update every 3 months, Interval Trainr monthly. Both last shipped on October 9, 2026.
| Parameter | Custom Running Intervals | Interval Trainr |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 11 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | John Mallonee | Timothy Maloney |
In-app purchases
Custom Running Intervals
- Full Capabilities$0.99
Interval Trainr
No in-app purchases
Questions
Is Custom Running Intervals free?
Is Interval Trainr free?
Do Custom Running Intervals or Interval Trainr have ads?
Which is updated more often, Custom Running Intervals or Interval Trainr?
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