# Development Card cost eval vs Oscillo

The clearest difference is in-app purchases: Development Card cost eval at none against Oscillo's 4. Development Card cost eval also leads on iOS requirement (16.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Oscillo sells 4 in-app purchases, starting at $6.99 per month. Development Card cost eval asks for nothing beyond the download.

## The numbers

| Metric | Development Card cost eval | Oscillo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (25 ratings)](https://appshunter.io/ios/app/oscillo-watch-accuracy-meter/id6759264433/reviews)** |
| Number of ratings | — | **25** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 63 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | +4 |
| Developer | [David Germain](https://appshunter.io/developer/1672649621) | [Attila Halasz](https://appshunter.io/developer/790905891) |

## What reviewers say

### Development Card cost eval

[App page](https://appshunter.io/ios/app/development-card-cost-eval/id1673441646)

**Features:** macOS Compatibility

**In-app purchases:** none


### Oscillo

[App page](https://appshunter.io/ios/app/oscillo-watch-accuracy-meter/id6759264433)

This app uses your iPhone's microphone to measure the rate, beat error, and amplitude of mechanical watches. It also identifies watch models, manages your collection with AI-generated portraits, and tracks performance over time. Get detailed reports and reminders to maintain your timepieces.

**Highlights:** Measure watch rate, beat error, and amplitude, AI watch identification and model detection, AI-generated watch portraits for collection, Collection management and organization, Detailed measurement history and trends, Precision tracking and multi-day cycles, Weekly watch reports and profile insights

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Oscillo Pro Monthly | $6.99 | per month |
| Oscillo Pro Annual | $29.99 | per year |
| Founder's Lifetime | $49.99 | one-time |
| Oscillo Pro Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is Development Card cost eval free?

Development Card cost eval is free to download, with no in-app purchases.

### Is Oscillo free?

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

### Do Development Card cost eval or Oscillo have ads?

Neither Development Card cost eval nor Oscillo shows ads.

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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.*