Comparison

Thumzup vs .i.s.o.

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Thumzup

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
Read full description

The Thumzup app connects brands, products and services with the people who use and love these brands, products and services. For advertisers, Thumzup activates real people to post real product reviews and testimonials on social media which may enhance brand awareness, reach targeted consumers more directly and effectively while driving profitable traffic to their goods and services. We are building an influencer community around our Thumzup mobile app that will generate scalable word-of-mouth product posts and recommendations for advertisers on social media. Our app is designed to connect advertisers with individuals who are willing to promote their products online and offline.

About

.i.s.o.

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
Read full description

Most apps want more of you. More time, more taps, more of your attention sold to whoever's buying. .i.s.o. wants less. It's a small, calm place for photographers, artists, and the people who love their work, built on the "radical" idea that you should be able to look at something beautiful without being exploited for profit. There's no algorithm here deciding what you see. No advertising snuck between the images. No artificial intelligence shaping the feed, writing the captions, or guessing what you'll tap next. Only art, made by people, shown honestly. Inside, things move slowly on purpose. You'll find photographs you'd never have come across otherwise and feeds that hold still instead of chasing your attention. A map that lights up wherever work is being made, gathered into a heatmap rather than a pin, so you can wander without anyone tracking where a photo was taken. Images shown one at a time, given room to breathe, with the lens, shutter speed, and histogram a slide away. Leave a heartbeat for the work you love or keep an inspiration for the few pieces you can't forget. Your profile reads more like a portrait than a form - your gear, your collections, the artists who shaped you. Nothing here is built to be measured against anyone else. And when you go looking, the filter actually narrows: by subject, medium, gear, or color, stacked to further refine your search. Every long exposure of water. Every street frame shot on 35mm. Exactly what you came for, and nothing sponsored in the way. It's all lovingly tended by hand. Screenshots are disabled, so your work can't be scraped, and your photographs never train a generative model or live anywhere else online. When something's reported, a person reads it, and if someone has to leave, they're told why. It costs one dollar a month, and that dollar is used purely to keep the services running. Your data isn't for sale because there's no one to sell it to. The app answers to you, because you're the one it's for. If you make things, or simply love the art people create, we would love to have you.

Screenshots

Thumzup4 screens
.i.s.o.4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

.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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
Thumzup versus .i.s.o.: the parameters behind the verdict, then further details
ParameterThumzup.i.s.o.
PriceFreeFree
Rating4.2 (84 ratings)5.0 (1 ratings) — better
Positive reviews74.5% of reviews100.0% of reviews — better
Number of ratings84 — better1
Update frequencyEvery 6 weeksEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better18.0
Further details — not scored
Size117 MB67 MB
Age rating4+12+
DeveloperThumzup Media Corporationbrandon owen

Customer experience

Thumzup

All ratings84 ratings
Positive79.8%
Neutral1.2%
Negative19.0%
Written reviews47 reviews
Positive74.5%
Neutral2.1%
Negative23.4%

.i.s.o.

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Thumzup

Reported bugs

3 issues
  • Invite codes not working
  • App blocked without reason
  • Account deleted without permission

Requested features

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

.i.s.o.

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Thumzup

No in-app purchases

1 purchases

.i.s.o.

Subscriptions1
  • .i.s.o.$1.001 Month

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.

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