# SPC1 vs Pistonly

The clearest difference is in-app purchases: SPC1 at none against Pistonly's 3. Pistonly's advantage is update cadence (weekly vs every 3 weeks) and iOS requirement (17.0 vs 27.0). On price, ads and device support there is nothing between them.

Both are free to download. Pistonly sells 3 in-app purchases, starting at $4.99 per month. SPC1 asks for nothing beyond the download.

SPC1 ships an update every 3 weeks, Pistonly weekly. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SPC1 | Pistonly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pistonly-ai-car-diagnostics/id6791636728/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | — | Freemium |
| Size | 12 MB | 36 MB |
| Requires iOS | 27.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TPE Europe GmbH](https://appshunter.io/developer/1561470951) | [Aliaksei Yelin](https://appshunter.io/developer/1502827500) |

## What reviewers say

### SPC1

[App page](https://appshunter.io/ios/app/spc1/id6759038434)

**In-app purchases:** none


### Pistonly

[App page](https://appshunter.io/ios/app/pistonly-ai-car-diagnostics/id6791636728)

This app acts as an AI mechanic, interpreting OBD2 fault codes and car service history to identify likely issues. It provides guided checklists and detailed explanations, helping users understand and manage car repairs.

**Highlights:** AI fault code analysis, Car service history logging, Guided repair checklists, Live sensor data, Odometer cross-check, Plain language explanations

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pistonly Pro — Monthly | $4.99 | per month |
| Pistonly Pro — Annual | $29.99 | per year |
| Pistonly Pro Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is SPC1 free?

SPC1 is free to download, with no in-app purchases.

### Is Pistonly free?

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

### Do SPC1 or Pistonly have ads?

Neither SPC1 nor Pistonly shows ads.

### Which is updated more often, SPC1 or Pistonly?

SPC1 ships an update every 3 weeks, and Pistonly weekly. Most recently, SPC1 was updated on October 31, 2026 and Pistonly on October 24, 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.*