Comparison

iORA vs 7fish

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

Head to head
About

iORA

Visualize chemical reactions in 3D using quantum-mechanical simulations. This free, interactive application makes complex chemistry concepts accessible and engaging for learners.

Highlights
  • 3D chemical reaction visualization
  • Quantum-mechanical simulations
  • Interactive learning
  • Easy to use interface
  • Educational tool
Features
Read full description

iORA is a free, easy to use, highly interactive smartphone application that provides 3D visualization of chemical reactions based on quantum-mechanical simulations.

About

7fish

Learn languages through AI-generated stories tailored to your level and interests. Easily look up words, translate sentences, and listen to stories read aloud. Track your progress as the AI adapts content to your growing proficiency.

Highlights
  • AI-generated custom stories
  • Interactive word lookup and translation
  • Audio playback for stories
  • Progress tracking and adaptive vocabulary
  • Device syncing (premium)
  • AI chatbot for grammar and vocabulary questions (premium)
  • Weekly multi-chapter saga generation (premium)
Features
Read full description

Here's the story for why I built this app: After achieving a 1,000 day streak learning Chinese on another popular language learning app, I realized that I didn't really know Chinese. Sure I could say things like "I like cats and dogs" but I couldn't say anything of real substance. And if I heard someone speaking Chinese, there was exactly a 0% chance that I would understand them. So I started looking for a better way to learn Chinese. I came across this idea of "comprehensible input" by Stephen Krashen which basically says in order to learn a language, you need to be exposed to lots of language material that's slightly above your current level. I was fascinated and wanted to try it so I started looking for Chinese content. A few things became clear to me: 1. Reading content in another language takes a lot of effort. 2. Studying becomes easier if the content is something you're interested in. 3. It's hard to find content that's both at your level and interesting. You can see where this is going... I built 7fish to solve these problems. The main thinking was that if I could make reading less of a chore and more fun, then I could actually learn Chinese. I tried using ChatGPT to accomplish my goals but luckily for you, the process was too clunky and the overhead was too high. I needed something more streamlined. So 7fish was born and now you can learn a language with it too. 7fish uses AI to generate stories that are both interesting and slightly above your current level. You simply specify what you want the story to be about and voila, the AI will give you a story about that. 7fish makes it easy to learn new words. Long-press a word to see it's pronunciation and definitions. Tap a sentence to see the English translation. Press the playback button to have the story read aloud to you. 7fish tracks your progress over time. The AI knows which words you're currently learning and will intentionally include them in the stories. Additionally, the stories will become more complex and have richer vocabulary as your proficiency grows. I've made the app free to use with ads. However, there are a few premium features that you can unlock through subscriptions: 1. Device syncing - you can access your progress / stories on any device. 2. AI chat bot - while reading a story, you can ask the AI questions about the grammar, vocabulary, or anything else related to the story. 3. Weekly saga generation - sagas are multi-chapter stories. Because sagas are longer, you can have more interesting and complex stories. Try reading 1-2 stories per day with 7fish. Keep it up and hopefully one day you'll be fluent in that language that you've always wanted to learn. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

iORA4 screens
7fish4 screens

Verdict

The call

The clearest difference is in-app purchases: iORA at none against 7fish's 6. iORA also leads on ads (none vs shown) and update cadence (every 2 months vs every 8 months). On price, rating 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. 7fish sells 6 in-app purchases, starting at $1.99 per month. iORA asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for iORA against 5.0 for 7fish. That said, the two scores are not equally well evidenced: iORA has 12 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

iORA ships an update every 2 months, 7fish every 8 months. The most recent releases landed on September 22, 2026 and October 3, 2026 respectively.

Scorecard6 real differences · 4 level
iORA versus 7fish: the parameters behind the verdict, then further details
ParameteriORA7fish
PriceFreeFree
Rating5.0 (12 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings12 — better1
Update frequencyEvery 2 months — betterEvery 8 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.3 — better16.4
Further details — not scored
Size40 MB61 MB
Age rating4+4+
DeveloperDaniel EssAusten Probst

Customer experience

iORA

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

7fish

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

iORA

No in-app purchases

6 purchases

7fish

Subscriptions6
  • Basic - Monthly$1.991 Month
  • Student - Monthly$6.991 Month
  • Unlimited - Monthly$14.991 Month
Show 3 more
  • Basic - Annual$19.991 Year
  • Student - Annual$69.991 Year
  • Unlimited - Annual$149.991 Year

Questions

Is iORA free?
iORA is free to download, with no in-app purchases.
Is 7fish free?
7fish is free to download, with in-app purchases available.
Which has better reviews, iORA or 7fish?
iORA and 7fish are both rated 5.0 out of 5 on the App Store, from 12 and 1 ratings respectively.
Do iORA or 7fish have ads?
7fish shows ads; iORA does not.
Which is updated more often, iORA or 7fish?
iORA ships an update every 2 months, and 7fish every 8 months. Most recently, iORA was updated on September 22, 2026 and 7fish on October 3, 2026.

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