# Thumzup vs .i.s.o.

The clearest difference is rating: .i.s.o. at 5.0 against Thumzup's 4.2. .i.s.o. also leads on review sentiment (100% vs 74%) and update cadence (every 9 days vs every 6 weeks). Thumzup's advantage is in-app purchases (none vs 1) and ratings volume (84 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. .i.s.o. sells 1 in-app purchase, starting at $1.00 per month. Thumzup asks for nothing beyond the download.

.i.s.o. holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Thumzup has 84 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 74% of Thumzup's written reviews are positive against 100% of .i.s.o.'s.

Thumzup ships an update every 6 weeks, .i.s.o. every 9 days. The most recent releases landed on October 16, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Thumzup | .i.s.o. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (84 ratings)](https://appshunter.io/ios/app/thumzup/id1549802604/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iso/id6760863375/reviews)** |
| Number of ratings | **84** | 1 |
| Positive reviews | 74.5% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Monetization | **Free** | Subscription |
| Size | 117 MB | 67 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Thumzup Media Corporation](https://appshunter.io/developer/1549802606) | [brandon owen](https://appshunter.io/developer/1886573511) |

## What reviewers say

### Thumzup

[App page](https://appshunter.io/ios/app/thumzup/id1549802604)

This app connects individuals with brands, products, and services they love. It enables users to share authentic reviews and testimonials on social media, helping brands increase awareness and reach. Join an influencer community to promote products and drive traffic.

**Highlights:** Connect with brands, products, and services, Post real product reviews and testimonials, Enhance brand awareness, Reach targeted consumers, Drive profitable traffic, Join an influencer community

**In-app purchases:** none

**What reviewers like**

- 💰 Earn money for posts
- 💡 Great concept/idea
- 👍 Easy to use
- 🚀 Fast payment processing
- 🌟 Discover new businesses

**What reviewers complain about**

- 📍 Limited availability in area
- ❌ Invite code issues
- 🚫 No businesses to review
- 😠 Poor customer support
- 💸 Never got paid

**Reported bugs**

- Invite codes not working
- App blocked without reason
- Account deleted without permission

**Requested features**

- More businesses in my area
- More plant-based options
- Highlight sustainable companies
- More campaigns available


### .i.s.o.

[App page](https://appshunter.io/ios/app/iso/id6760863375)

A calm, ad-free social space for artists and art lovers. Focuses on showcasing art without algorithmic manipulation or profit-driven exploitation. Offers detailed image information and a curated experience.

**Highlights:** No algorithmic feed manipulation, Ad-free experience, Detailed image information (lens, shutter, histogram), Curated discovery of art, User profiles as portraits, Advanced search filters, Screenshot disabling for content protection

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| .i.s.o. | $1.00 | per month |


## Frequently asked questions

### Is Thumzup free?

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

### Is .i.s.o. free?

.i.s.o. is free to download, with in-app purchases available.

### Which has better reviews, Thumzup or .i.s.o.?

.i.s.o. is rated higher. Thumzup averages 4.2 out of 5 from 84 ratings, while .i.s.o. averages 5.0 from 1 ratings.

### Do Thumzup or .i.s.o. have ads?

Neither Thumzup nor .i.s.o. shows ads.

### Which is updated more often, Thumzup or .i.s.o.?

Thumzup ships an update every 6 weeks, and .i.s.o. every 9 days. Most recently, Thumzup was updated on October 16, 2026 and .i.s.o. on October 19, 2026.

---

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