# SolCircl vs DiagonalOBDII

The clearest difference is in-app purchases: SolCircl at none against DiagonalOBDII's 4. SolCircl also leads on device support (3 vs 1) and ratings volume (3 vs 1). DiagonalOBDII's advantage is update cadence (every 2 weeks vs every 2 months). On price, rating and ads there is nothing between them.

Both are free to download. DiagonalOBDII sells 4 in-app purchases, starting at $12.99 per month. SolCircl asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for SolCircl against 5.0 for DiagonalOBDII. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

SolCircl ships an update every 2 months, DiagonalOBDII every 2 weeks. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | SolCircl | DiagonalOBDII |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/solcircl/id6502469087/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/diagonalobdii/id6743419784/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 41 MB | 21 MB |
| Requires iOS | **15.6** | 18.1 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Mustafa Ozpolat](https://appshunter.io/developer/1679811752) | [Kyle Louderback](https://appshunter.io/developer/1400068218) |

## What reviewers say

### SolCircl

[App page](https://appshunter.io/ios/app/solcircl/id6502469087)

Effortlessly track your Solana investments and validator performance. Monitor staking portfolios, receive crucial push notifications for alerts, and stay updated with the latest Solana news and videos. Designed for intuitive use, it provides insights into validator metrics and your staking rewards.

**Highlights:** Track native and liquid Solana staking portfolios, Monitor validator performance against cluster stats, Receive push notifications for alerts, Access Solana news and videos, Intuitive interface with multiple validator support, Marinade PSR Dashboard for auction insights

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

**In-app purchases:** none


### DiagonalOBDII

[App page](https://appshunter.io/ios/app/diagonalobdii/id6743419784)

This app helps mechanics perform vehicle drive cycles more efficiently. It provides real-time monitoring of emissions monitors and diagnostic trouble codes (DTCs), offering clear guidance and instant explanations to ensure vehicles pass inspection quickly and accurately.

**Highlights:** Live drive cycle monitoring, Immediate diagnostic trouble code (DTC) identification, Real-time emissions monitor status, Precise drive cycle parameter guidance, Professional, easy-to-navigate dashboard, Instant code explanations

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diagonal Premium Monthly | $12.99 | per month |
| Diagonal Premium Trial | $12.99 | per month |
| Shop Owner - Monthly | $17.99 | per month |
| Diagonal Premium Yearly | $99.99 | per year |


## Frequently asked questions

### Is SolCircl free?

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

### Is DiagonalOBDII free?

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

### Which has better reviews, SolCircl or DiagonalOBDII?

SolCircl and DiagonalOBDII are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do SolCircl or DiagonalOBDII have ads?

Neither SolCircl nor DiagonalOBDII shows ads.

### Which is updated more often, SolCircl or DiagonalOBDII?

SolCircl ships an update every 2 months, and DiagonalOBDII every 2 weeks. Most recently, SolCircl was updated on October 24, 2026 and DiagonalOBDII on October 22, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*