# e85Cal vs SPARQ AI

The clearest difference is update cadence: SPARQ AI at every 8 days against e85Cal's every 4 months. SPARQ AI also leads on ratings volume (374 vs 37). e85Cal's advantage is review sentiment (83% vs 63%) and monetization model (free vs ad-supported). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for e85Cal against 4.7 for SPARQ AI. That said, the two scores are not equally well evidenced: SPARQ AI has 374 ratings behind it against 37, so its average is the more settled of the two. Written reviews are what separate them: 83% of e85Cal's written reviews are positive against 63% of SPARQ AI's.

e85Cal ships an update every 4 months, SPARQ AI every 8 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | e85Cal | SPARQ AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (37 ratings)](https://appshunter.io/ios/app/e85cal/id1470313135/reviews) | **[4.7 (374 ratings)](https://appshunter.io/ios/app/sparq-ai/id6469515871/reviews)** |
| Number of ratings | 37 | **374** |
| Positive reviews | **83.3% of reviews** | 63.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 8 days** |
| Monetization | **Free** | Ad-supported |
| Size | 15 MB | 322 MB |
| Requires iOS | **12.1** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Michael Joe](https://appshunter.io/developer/1132486512) | [Joinsparq](https://appshunter.io/developer/1712103503) |

## What reviewers say

### e85Cal

[App page](https://appshunter.io/ios/app/e85cal/id1470313135)

This app assists users in calculating the precise amounts of standard and ethanol gasoline needed to achieve a desired ethanol percentage in their fuel mix. It simplifies the process by taking into account tank size, current fuel level, and the ethanol content of available fuel types.

**Highlights:** Calculate ethanol percentage goal, Enter gas tank size, Input standard pump gas ethanol %, Input ethanol pump gas ethanol %, Set target ethanol % mix, Enter current fuel level %

**Features:** macOS Compatibility

**In-app purchases:** none


### SPARQ AI

[App page](https://appshunter.io/ios/app/sparq-ai/id6469515871)

This app uses AI to monitor your car's health, predicting potential breakdowns and preventing costly repairs. It offers remote diagnostics, real-time condition monitoring, and personalized recommendations based on your vehicle's data and driving habits.

**Highlights:** Predict vehicle breakdowns, Remote diagnostics, Diagnose 50,000+ trouble codes, Real-time vehicle condition monitoring, AI car health scoring, Individual component health status, Vehicle records and reminders

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

**In-app purchases:** none

**What reviewers like**

- 👍 Intuitive and user-friendly interface
- 💎 Premium hardware design and build quality
- 🚀 Quick and easy setup process
- 🧠 AI-powered diagnostics provide valuable insights
- 💰 No subscription fees required

**What reviewers complain about**

- ❌ Misses critical diagnostic codes that other scanners detect
- ⚠️ Inconsistent and unreliable scanning results
- 🐢 App performance is slow and sluggish
- 💸 Expensive pricing ($130-$400) for limited functionality
- 🔧 Cannot clear diagnostic codes

**Reported bugs**

- Bluetooth pairing fails with 'SPARQ not supported' error after updates
- App screens in Care Guide section don't populate
- Mileage reading displays 40,000+ miles higher than actual
- Inconsistent code detection across different vehicles
- App freezes and becomes unresponsive

**Requested features**

- Maintenance logging feature with dates and mileage tracking
- Live data stream viewing capability
- Ability to clear diagnostic codes
- Dashboard warning light detection and reset
- Tire pressure (TPMS) sensor reading


## Frequently asked questions

### Is e85Cal free?

e85Cal is free to download, with no in-app purchases.

### Is SPARQ AI free?

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

### Which has better reviews, e85Cal or SPARQ AI?

SPARQ AI is rated higher. e85Cal averages 4.7 out of 5 from 37 ratings, while SPARQ AI averages 4.7 from 374 ratings.

### Do e85Cal or SPARQ AI have ads?

Neither e85Cal nor SPARQ AI shows ads.

### Which is updated more often, e85Cal or SPARQ AI?

e85Cal ships an update every 4 months, and SPARQ AI every 8 days. Most recently, e85Cal was updated on October 24, 2026 and SPARQ AI on October 27, 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.*