intervals vs WOTools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
intervals
This app helps you structure and time your workouts, including intervals for rest and effort. It's designed for various training methods like CrossFit, Tabata, and HIIT, allowing you to create and save custom timers for your fitness sessions.
- Create custom workout timers
- Personalize intervals with time and color
- Set round counts
- Save and name workout routines
- Supports CrossFit, Tabata, and HIIT
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intervals is the indispensable partnair for all your workouts. Regardless of your sport, the rigor brings the progress. Everything have to be controlled, starting by your effort and rest times. intervals supports yourself during your workouts to always control your performance. The application is intended to classic fitness and musculation training mehods and to them used by CrossFit, Tabata, HIIT… With a few steps adapt intervals to your workouts : 1 – Create your timers by adding time intervals 2 – Personalize these intervals (time, color, pause) 3 – Choose the rounds count to achieve 4 – Give a name to your time and save it 5 – Start and GIVE THE BEST OF YOURSELF intervals has been created for the sportsmen to offer them the best tool for their sports sessions. Please take a moment to rate intervals and give your suggestions. Your comments push the application to improve.
WOTools
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WOTools includes some useful tools that will help you while working out: - A timer: simple, easy to use, notifies you when a selected duration is over. - A chronometer: so simple! - A plate calculator: determines which plates to put on each side of a bar given a bar weight. - A reverse calculator: calculates the total weight given a bar weight and a number of plates. - A 1RM calculator (One-rep max): calculates 1RM corresponding to a certain number of reps and a given weight. WOTools is very easy to use and straightforward. Select the timer duration thanks to list of a pre-defined values (that you may customise), or from a wheel. The timer remembers the last duration you selected. Select the sound to be played when the timer is over (25 sounds are available). Modify the bar weight as simply as it is to input the total weight and to calculate which plates to put on each side of a bar, given a set of available plates (that you may customise). 1RM is calculated along with a table of percentages that will be useful for your training program. Choose the algorithm that provides the results that best suit you. Select a picture or a photo of yours to be used as a wallpaper in WOTools. WOTools is compatible with iOS 13 Dark Mode. WOTools works perfectly well without any internet connection.
Screenshots
Verdict
The clearest difference is update cadence: intervals at every 5 weeks against WOTools's every 4 months. intervals also leads on iOS requirement (8.0 vs 15.6). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
intervals ships an update every 5 weeks, WOTools every 4 months. The most recent releases landed on July 4, 2026 and September 13, 2026 respectively.
| Parameter | intervals | WOTools |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (9 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 5 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 22 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Lilian SUZAN | Robin Confalonieri |
In-app purchases
intervals
No in-app purchases
WOTools
No in-app purchases









