# Stack Team App vs NinjaTrainer

The clearest difference is rating: NinjaTrainer at 5.0 against Stack Team App's 4.0. NinjaTrainer also leads on ads (none vs shown) and update cadence (every 6 days vs every 2 weeks). Stack Team App's advantage is ratings volume (15K vs 3) and chart position (#100 vs unranked). On price, in-app purchases, monetization model and iOS requirement there is nothing between them.

Both are free to download. Stack Team App sells 1 in-app purchase, starting at $2.99 per year and NinjaTrainer sells 4 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

NinjaTrainer holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Stack Team App has 15K ratings behind it against 3, so its average is the more settled of the two.

Stack Team App ships an update every 2 weeks, NinjaTrainer every 6 days. The most recent releases landed on October 28, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Stack Team App | NinjaTrainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (15K ratings)](https://appshunter.io/ios/app/stack-team-app/id625607532/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/ninjatrainer-team-training/id6748374238/reviews)** |
| Number of ratings | **15K** | 3 |
| Positive reviews | 41.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#100** | — |
| Size | 227 MB | 91 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Team Mates](https://appshunter.io/developer/625607535) | [Dragonscale Labs LLC](https://appshunter.io/developer/1825541136) |

## What reviewers say

### Stack Team App

[App page](https://appshunter.io/ios/app/stack-team-app/id625607532)

**Currently charting:** #100 Top Free · Sports (US App Store)

This platform allows sports teams and clubs to create their own customizable smartphone apps and websites. It offers features for communication, event management, payments, and merchandise sales, enhancing club professionalism and engagement.

**Highlights:** Instant news, event, photo, and video sharing, Event promotion, reminders, and attendance tracking, In-app payments and merchandise sales, Customizable access groups for members, Private messaging and group chats, Surveys and in-app voting, Sync team events with smartphone calendar

**Features:** Apple Wallet, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | per year |

**What reviewers like**

- 🚀 Customizable and feature-rich
- 📅 Useful calendar and scheduling features
- 💬 Effective communication and chat tools
- 🏆 Great for managing sports teams and clubs
- 🆓 Free app with good value

**What reviewers complain about**

- 🐛 Buggy notifications and inconsistent behavior
- 📱 Cluttered and confusing user interface
- 💢 Frustrating ad experience, disruptive pop-ups
- 🔍 Difficulty finding and accessing information
- 🔒 Concerns about privacy and security

**Reported bugs**

- Notifications not clearing after viewing
- Frequent app crashes and freezes
- Inconsistent behavior when posting messages
- Syncing issues between mobile and web versions
- Unreliable performance and slow load times

**Requested features**

- Allow editing of past events and posts
- Improve calendar sync with external calendars
- Add option to disable notifications or customize them
- Enhance photo and video upload capabilities
- Provide more granular access control and permissions


### NinjaTrainer

[App page](https://appshunter.io/ios/app/ninjatrainer-team-training/id6748374238)

This platform helps ninja and obstacle course racing athletes, coaches, and parents track training, manage teams, and discover events. It offers custom course timing, skill logging, team leaderboards, and direct messaging for seamless communication and progress monitoring.

**Highlights:** Custom obstacle course timing, Skill logging and progress tracking, Team management with QR codes, Live team leaderboards, Built-in team chat, Event discovery and management, Gym finder

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus - Monthly | $7.99 | per month |
| Pro - Monthly | $14.99 | per month |
| Plus - Annual | $79.99 | per year |
| Pro - Annual | $129.99 | per year |


## Frequently asked questions

### Is Stack Team App free?

Stack Team App is free to download, with in-app purchases available.

### Is NinjaTrainer free?

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

### Which has better reviews, Stack Team App or NinjaTrainer?

NinjaTrainer is rated higher. Stack Team App averages 4.0 out of 5 from 15K ratings, while NinjaTrainer averages 5.0 from 3 ratings.

### Do Stack Team App or NinjaTrainer have ads?

Stack Team App shows ads; NinjaTrainer does not.

### Which is updated more often, Stack Team App or NinjaTrainer?

Stack Team App ships an update every 2 weeks, and NinjaTrainer every 6 days. Most recently, Stack Team App was updated on October 28, 2026 and NinjaTrainer on October 5, 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.*