# PurpleShift vs OPTIfit.

The clearest difference is in-app purchases: OPTIfit. at none against PurpleShift's 15. OPTIfit. also leads on ads (none vs shown). PurpleShift's advantage is update cadence (every 3 weeks vs every 5 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. PurpleShift sells 15 in-app purchases, starting at $9.99 per month. OPTIfit. asks for nothing beyond the download.

PurpleShift ships an update every 3 weeks, OPTIfit. every 5 months. The most recent releases landed on September 14, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | PurpleShift | OPTIfit. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (10 ratings)](https://appshunter.io/ios/app/purpleshift/id1458774155/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 581 MB | 174 MB |
| Requires iOS | 16.0.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [PURPLESHIFT LLC](https://appshunter.io/developer/1458774154) | [OPTIfit Fitnessclub GbR](https://appshunter.io/developer/1582456382) |

## What reviewers say

### PurpleShift

[App page](https://appshunter.io/ios/app/purpleshift/id1458774155)

This app uses AI to analyze athletic movements, turning your phone into a biomechanics lab. It provides detailed scores and insights into performance categories like takeoff symmetry and explosive timing, helping athletes and coaches improve. Offers a free option with ads or a premium subscription for unlimited ad-free analysis.

**Highlights:** AI-driven vertical jump analysis, Form score analysis across 7 categories, Potential tab with perfect form calculator, Professional video tools (protractor, scrubber), Smart athlete management (FaceID, multi-athlete), Data export for coaching analysis

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tier 1 Monthly | $9.99 | per month |
| Tier 2 Monthly Subscription | $39.99 | per month |
| Tier 3 Monthly Subscription | $49.99 | per month |
| Tier 1 Yearly Subscription | $109.99 | per year |
| Tier 2 Yearly Subscription | $459.99 | per year |
| Tier 3 Yearly Subscription | $579.99 | per year |
| Expedite Verification | $0.99 | one-time |
| Single PurpleShift Lab Coin | $1.99 | one-time |
| Single Verification Coins | $4.99 | one-time |
| 10 Pack PurpleShift Lab | $9.99 | one-time |
| Unlimited Verifications Weekly | $19.99 | one-time |
| Unlimited Sprint Coins WK | $24.99 | one-time |
| 10 Pack Verification Coins | $39.99 | one-time |
| Unlimited Verification Monthly | $49.99 | one-time |
| Unlimited Sprint Coins Monthly | $59.99 | one-time |


### OPTIfit.

[App page](https://appshunter.io/ios/app/optifit/id1582456380)

**Features:** macOS Compatibility, Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PurpleShift free?

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

### Is OPTIfit. free?

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

### Do PurpleShift or OPTIfit. have ads?

PurpleShift shows ads; OPTIfit. does not.

### Which is updated more often, PurpleShift or OPTIfit.?

PurpleShift ships an update every 3 weeks, and OPTIfit. every 5 months. Most recently, PurpleShift was updated on September 14, 2026 and OPTIfit. on September 15, 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.*