# LETU IMs vs Whistle Performance

The clearest difference is rating: LETU IMs at 4.5 against Whistle Performance's 3.6. LETU IMs also leads on iOS requirement (9.0 vs 15.1). Whistle Performance's advantage is update cadence (every 2 weeks vs every 37 months). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

LETU IMs holds the better App Store score, 4.5 against 3.6. Both are backed by a comparable volume of ratings — 19 and 7 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

LETU IMs ships an update every 37 months, Whistle Performance every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | LETU IMs | Whistle Performance |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (19 ratings)](https://appshunter.io/ios/app/letu-ims/id1407190378/reviews)** | [3.6 (7 ratings)](https://appshunter.io/ios/app/whistle-performance/id1638068131/reviews) |
| Number of ratings | **19** | 7 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 37 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 57 MB | 39 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IMLeagues, LLC](https://appshunter.io/developer/1259009535) | [GPS DataViz](https://appshunter.io/developer/1638068133) |

## What reviewers say

### LETU IMs

[App page](https://appshunter.io/ios/app/letu-ims/id1407190378)

Stay informed about intramural sports schedules and check into games using unique QR codes. This official mobile application provides instant access to all your IM sports information.

**Highlights:** IM Sports schedules, Game check-in with QR codes, Instant access to information, Official app

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

**In-app purchases:** none


### Whistle Performance

[App page](https://appshunter.io/ios/app/whistle-performance/id1638068131)

This platform helps sports coaches leverage machine learning and predictive analytics to gain actionable insights from performance data. It connects players and coaches to data, allowing for subjective surveys and a unified understanding of team performance.

**Highlights:** Machine learning and predictive analytics, Actionable performance data insights, Team workflow optimization, Player and coach data connection, Subjective survey input, Common language for coaching staff

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

**In-app purchases:** none


## Frequently asked questions

### Is LETU IMs free?

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

### Is Whistle Performance free?

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

### Which has better reviews, LETU IMs or Whistle Performance?

LETU IMs is rated higher. LETU IMs averages 4.5 out of 5 from 19 ratings, while Whistle Performance averages 3.6 from 7 ratings.

### Do LETU IMs or Whistle Performance have ads?

Neither LETU IMs nor Whistle Performance shows ads.

### Which is updated more often, LETU IMs or Whistle Performance?

LETU IMs ships an update every 37 months, and Whistle Performance every 2 weeks. Most recently, LETU IMs was updated on October 24, 2026 and Whistle Performance on October 25, 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.*