# RobotDiag vs Lookup Pass

The clearest difference is in-app purchases: RobotDiag at none against Lookup Pass's 6. RobotDiag also leads on iOS requirement (14.2 vs 18.0). Lookup Pass's advantage is update cadence (every 3 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Lookup Pass sells 6 in-app purchases, starting at $5.99 per month. RobotDiag asks for nothing beyond the download.

RobotDiag ships an update every 2 months, Lookup Pass every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | RobotDiag | Lookup Pass |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 3 MB | 4 MB |
| Requires iOS | **14.2** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Degrii Inc.](https://appshunter.io/developer/1672189374) | [First Light Holdings LLC](https://appshunter.io/developer/6809648002) |

## What reviewers say

### RobotDiag

[App page](https://appshunter.io/ios/app/robotdiag/id6743686962)

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

**In-app purchases:** none


### Lookup Pass

[App page](https://appshunter.io/ios/app/lookup-pass/id6809648000)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lookup Pass | $5.99 | per month |
| Lookup Pass Family | $9.99 | per month |
| Lookup Pass Annual | $59.99 | per year |
| Lookup Pass Family Annual | $99.99 | per year |
| 10 Lookups | $4.99 | one-time |
| 25 Lookups | $9.99 | one-time |


## Frequently asked questions

### Is RobotDiag free?

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

### Is Lookup Pass free?

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

### Do RobotDiag or Lookup Pass have ads?

Neither RobotDiag nor Lookup Pass shows ads.

### Which is updated more often, RobotDiag or Lookup Pass?

RobotDiag ships an update every 2 months, and Lookup Pass every 3 days. Most recently, RobotDiag was updated on October 30, 2026 and Lookup Pass on October 31, 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.*