# CIELO USAL vs Guru AI

The clearest difference is rating: CIELO USAL at 5.0 against Guru AI's 4.5. CIELO USAL also leads on in-app purchases (none vs 9) and review sentiment (50% vs 30%). Guru AI's advantage is ratings volume (37 vs 3). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Guru AI sells 9 in-app purchases, starting at $1.99 per month. CIELO USAL asks for nothing beyond the download.

CIELO USAL holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Guru AI has 37 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 50% of CIELO USAL's written reviews are positive against 30% of Guru AI's.

CIELO USAL ships an update every 2 weeks, Guru AI weekly. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | CIELO USAL | Guru AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/cielo-usal/id1403015571/reviews)** | [4.5 (37 ratings)](https://appshunter.io/ios/app/guru-ai-study-app/id6469240984/reviews) |
| Number of ratings | 3 | **37** |
| Positive reviews | **50.0% of reviews** | 29.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 74 MB | 111 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [Universidad de Salamanca](https://appshunter.io/developer/657082701) | [MeuGuru](https://appshunter.io/developer/1693903304) |

## What reviewers say

### CIELO USAL

[App page](https://appshunter.io/ios/app/cielo-usal/id1403015571)

Access a vast library of academic, scientific, and leisure e-books. Manage loans and reservations, read online, or download titles for offline access. Customize your reading experience with adjustable fonts, brightness, and annotation tools.

**Highlights:** Browse e-book catalog, Manage loans and reservations, Download books for offline reading, Adjustable reading format, Font customization, Brightness and line spacing adjustment, Text highlighting and note-taking

**In-app purchases:** none


### Guru AI

[App page](https://appshunter.io/ios/app/guru-ai-study-app/id6469240984)

Get instant, detailed, and explained solutions to your academic questions with AI. Simply upload a photo or type your query to receive reliable support across a wide range of subjects, from basic education to college level.

**Highlights:** AI-powered academic assistance, Photo or text question input, Detailed, explained solutions, Support for multiple subjects, Audio or text question submission, Tutor-verified methodologies

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Assinatura GuruIA | $1.99 | per month |
| Infinity Weekly Subscription | $3.99 | per 7 days |
| Infinity Monthly Subscription | $9.99 | per month |
| Guru AI Monthly Subscription | $9.99 | per month |
| Infinity Annual Subscription | $14.99 | per year |
| Infinity Annual Subscription | $22.99 | per year |
| Infinity Annual Subscription | $22.99 | per year |
| Quarterly Guru AI Subscription | $22.99 | per 3 months |
| Guru AI Annual Subscription | $39.99 | per year |

**What reviewers like**

- 👍 Helpful for studies
- 🚀 Efficient for complex tasks
- 👍 Practical for quick answers
- 👍 Good for academic life
- 👍 Accurate answers (for some)

**What reviewers complain about**

- 👎 Misleading advertising (free vs paid)
- 👎 Inaccurate/wrong answers
- 👎 High cost/expensive
- 👎 Limited free questions
- 👎 Poor customer support

**Reported bugs**

- Camera not taking landscape photos
- App not opening for paid users
- Subscription not unlocking features
- Account reverted to free
- Dictation picked up in Portuguese

**Requested features**

- Allow continuous questioning
- Improve OCR and AI accuracy
- Provide clearer information about answer reliability
- Offer a lower price point
- Allow account deletion


## Frequently asked questions

### Is CIELO USAL free?

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

### Is Guru AI free?

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

### Which has better reviews, CIELO USAL or Guru AI?

CIELO USAL is rated higher. CIELO USAL averages 5.0 out of 5 from 3 ratings, while Guru AI averages 4.5 from 37 ratings.

### Do CIELO USAL or Guru AI have ads?

Neither CIELO USAL nor Guru AI shows ads.

### Which is updated more often, CIELO USAL or Guru AI?

CIELO USAL ships an update every 2 weeks, and Guru AI weekly. Most recently, CIELO USAL was updated on October 17, 2026 and Guru AI on October 14, 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.*