# INTVL vs Letrics

The clearest difference is in-app purchases: Letrics at none against INTVL's 10. Letrics also leads on ads (none vs shown) and iOS requirement (15.1 vs 17.0). INTVL's advantage is chart position (#75 vs unranked). On price, update cadence and device support there is nothing between them.

Both are free to download. INTVL sells 9 in-app purchases, starting at $7.99 per month. Letrics asks for nothing beyond the download.

INTVL ships an update every 6 days, Letrics weekly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | INTVL | Letrics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (5.7K ratings)](https://appshunter.io/ios/app/intvl/id6472631698/reviews)** | — |
| Number of ratings | **5.7K** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#75** | — |
| Size | 201 MB | 19 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [INTVL PTY LTD](https://appshunter.io/developer/1690979152) | [Gianni Carozza](https://appshunter.io/developer/1767399421) |

## What reviewers say

### INTVL

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

**Currently charting:** #75 Top Free · Health & Fitness, #103 Top Grossing · Health & Fitness (US App Store)

Transform your walks, runs, and bike rides into a real-world game where you claim territory by completing routes. Compete globally or locally, win real prizes, and connect with a community of athletes. Integrates with popular fitness devices and Apple Health.

**Highlights:** Claim real-world territory by completing routes, Compete on global and local leaderboards, Win real prizes through competitions, Join clubs for team-based play, Social feed to follow other players, Integrates with Garmin, Fitbit, Apple Health, and more, Gamified fitness experience

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| INTVL | $7.99 | per month |
| INTVL | $7.99 | per month |
| INTVL | $8.99 | 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 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


### Letrics

[App page](https://appshunter.io/ios/app/letrics/id6818599614)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is INTVL free?

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

### Is Letrics free?

Letrics is free to download, with no in-app purchases.

### Do INTVL or Letrics have ads?

INTVL shows ads; Letrics does not.

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

INTVL ships an update every 6 days, and Letrics weekly. Most recently, INTVL was updated on November 6, 2026 and Letrics on October 31, 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.*