# INTVL vs Stimuli

The clearest difference is ads: Stimuli at none against INTVL's shown. Stimuli also leads on iOS requirement (15.0 vs 17.0). INTVL's advantage is chart position (#33 vs unranked). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. INTVL sells 12 in-app purchases, starting at $7.99 per month and Stimuli sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

INTVL ships an update every 6 days, Stimuli every 3 days. The most recent releases landed on October 26, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | INTVL | Stimuli |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (5.6K ratings)](https://appshunter.io/ios/app/intvl/id6472631698/reviews)** | — |
| Number of ratings | **5.6K** | — |
| Positive reviews | 83.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 days | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#33** | — |
| Size | 190 MB | 37 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [INTVL PTY LTD](https://appshunter.io/developer/1690979152) | [Stimuli Fitness Pty Ltd](https://appshunter.io/developer/1896774753) |

## What reviewers say

### INTVL

[App page](https://appshunter.io/ios/app/intvl/id6472631698)

**Currently charting:** #33 Top Free · Health & Fitness, #43 Top Grossing · Health & Fitness (US App Store)

This app transforms running into a live, global territory-based game. Compete with others to claim real space on a map, engage in live takeovers, and rise through the ranks. It combines strategy, competition, and exploration with personalized training plans and community features.

**Highlights:** Territory-based running game, Live global competitions, Smart GPS tracking, Personalized running plans, Smartwatch support, Connected runner community, Detailed performance stats

**Features:** Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| INTVL | $7.99 | per month |
| INTVL | $7.99 | per month |
| INTVL | $8.99 | per month |
| INTVL | $9.99 | per month |
| INTVL | $10.00 | per month |
| INTVL | $12.99 | per month |
| INTVL | $12.99 | per month |
| INTVL | $49.99 | per year |
| INTVL | $49.99 | per year |
| INTVL | $59.99 | per year |
| INTVL | $59.99 | per year |
| INTVL Annual Subscription | $79.99 | per year |

**What reviewers like**

- 🚀 Truly innovative running app
- 👍 Good fun app
- 👍 Perfect for unmotivated runners
- 👍 Love the community aspect
- 👍 Motivating

**What reviewers complain about**

- 🐛 Confusing user interface
- 🐛 Buggy app with crashes
- 🐛 Compatibility issues with other apps/devices
- 🐛 Unreliable GPS tracking
- 🐛 Cheating concerns with the Terra feature

**Reported bugs**

- Runs not recording properly
- App crashing during runs
- Issues with syncing and manual review

**Requested features**

- Revise the 200m Terra rule
- Add biking support
- Ability to set a starting location in Terra
- Allow creating and joining local run clubs
- More detailed Terra features and competitions


### Stimuli

[App page](https://appshunter.io/ios/app/stimuli-hypertrophy-tracker/id6771212131)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stimuli Pro Monthly | $9.99 | per month |
| Stimuli Pro Annual | $79.99 | per year |


## Frequently asked questions

### Is INTVL free?

INTVL is free to download, with in-app purchases available.

### Is Stimuli free?

Stimuli is free to download, with in-app purchases available.

### Do INTVL or Stimuli have ads?

INTVL shows ads; Stimuli does not.

### Which is updated more often, INTVL or Stimuli?

INTVL ships an update every 6 days, and Stimuli every 3 days. Most recently, INTVL was updated on October 26, 2026 and Stimuli on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*