Comparison

Cambridge Reader vs Ouistiti Maths

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

Head to head
About

Cambridge Reader

Access your Cambridge University Press ebooks offline on your mobile device. Download videos and audio to prepare for classes. Requires web registration and login details.

Highlights
  • Access Cambridge ebooks offline
  • Download videos and audio
  • View enhanced online content
  • Requires web registration
  • Supports iOS 11.0+
Features
Read full description

Developed for Cambridge University Press online subscription services, the Cambridge Reader App allows you to access your Cambridge Elevate, Go and Cambridge Learn Premium ebooks wherever you are. Downloading the Cambridge Reader app allows you to: • Access all of your favourite Cambridge ebooks directly from your mobile device • Have confidence that your content will be there - even if you lose internet access • Prepare for classes by downloading videos and audio to the app in advance To use the app you first need to register your account on the web using a PC or Mac. The minimum OS version supported by the Cambridge Reader App is iOS 11.0. If you already have a student or teacher account, you can log in, view your books from a phone and download enhanced online content, including videos, files, interactive activities and image galleries. This app will work once you have been sent login details and accepted the EULA and Terms of Use online.

About

Ouistiti Maths

Features
Read full description

Ouistiti Maths, the app that makes times tables fun. Four monkeys, four ways to learn, and an adventure of forty islands to conquer. Your child practises times tables and mental arithmetic without quite noticing — ten questions at a time, one round a day. FOUR WAYS TO PLAY • Learn — Milo reads the table out loud, line by line. No questions, just the table to listen to and look at. • Practise — ten questions, no timer, at your own pace. Three stars to win. • Nino's Challenge — timed, against your own record. 30 seconds, 1 minute or 2 minutes, on the operations and tables you pick. • Mental math — fill-in-the-blank sums, as many as you can before time runs out: 7 × ? = 21, find the missing number. All four operations mixed together, over 30 seconds, 1 minute or 2 minutes, with results up to 20, 50 or 100. Addition, subtraction, multiplication, division: all four operations, tables 1 to 10, always whole numbers, never a remainder. AN ADVENTURE AROUND THE WORLD Ten levels, four islands each, a boss at the end of every one. Forty real islands of the Earth, from Corsica to Greenland and from Tahiti to Okinawa, grouped into ten regions: the Mediterranean, the Caribbean, Polynesia, the Indian Ocean, South-East Asia, the North Atlantic, Japan, the British Isles, Oceania, and the great islands of the world. Conquering an island takes a flawless round, in under three seconds per answer. Beating a boss takes a flawless round across every table of the level. AN ATLAS TO EXPLORE Every island has its own page: its area, its territory, the sea around it, its rank among the forty, and the island closest to it in size. Its satellite map opens full screen, and the app can even tell you how far away it is. A little guessing game — which one is bigger? — is tucked into every page. A HUNDRED MEDALS AND A FLAME A hundred medals in six families: streaks, flawless rounds, stars, islands conquered, bosses beaten, operations mastered. Stars for every table, a daily goal, and a flame that keeps growing as long as you play at least one round a day. LEADERBOARDS UNDER A NICKNAME Five boards: stars, medals, streak, sums this week, mental math. Every player appears under a nickname drawn at random when the profile is created, never under a real name: only the nickname and the scores are shown. The nickname can be changed at any time from the profile. BY VOICE OR BY KEYPAD Your child can answer out loud: recognition runs on the device, and nothing is recorded or sent. The microphone is off by default, and the keypad is always there. STATS FOR PARENTS The Stats tab brings together the current streak, accuracy, time spent per day, records (best streak, adventure, Challenge, mental math), accuracy table by table and the list of sums worth revisiting. OUISTITI PRO The tables, mental arithmetic, the leaderboards and the first three levels of the adventure are free, with no time limit. Ouistiti Pro opens the seven levels that follow, lets you set up several children on the same iPhone, and unlocks free-text nicknames. Monthly, yearly, or once and for all. WHAT THERE ISN'T No ads. No account to create. No collecting your child's real name. Progress, profile and settings sync over iCloud from one device to the next, and the daily reminder can be set to the time and days that suit you. Ouistiti Maths supports schoolwork, it does not replace it. An app by Éd's Monkeys Consulting, made in France. Terms of Use (EULA): https://edsmonkeys.co/ouistiti-cluf.html Privacy Policy: https://edsmonkeys.co/ouistiti-confidentialite.html

Screenshots

Cambridge Reader4 screens
Ouistiti Maths4 screens

Verdict

The call

The clearest difference is in-app purchases: Cambridge Reader at none against Ouistiti Maths's 3. Cambridge Reader also leads on iOS requirement (11.0 vs 17.0). Ouistiti Maths's advantage is update cadence (every 5 days vs every 6 months). 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. Ouistiti Maths sells 3 in-app purchases, starting at $0.99 per month. Cambridge Reader asks for nothing beyond the download.

UpkeepUpdate frequency

Cambridge Reader ships an update every 6 months, Ouistiti Maths every 5 days. The most recent releases landed on October 14, 2026 and October 18, 2026 respectively.

Scorecard3 real differences · 7 level
Cambridge Reader versus Ouistiti Maths: the parameters behind the verdict, then further details
ParameterCambridge ReaderOuistiti Maths
PriceFreeFree
Rating2.5 (52 ratings) — better—
Positive reviews9.8% of reviews—
Number of ratings52 — better—
Update frequencyEvery 6 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better17.0
Further details — not scored
Size96 MB32 MB
Age rating4+4+
DeveloperCambridge University Press & Assessment (App)ED'S MONKEYS CONSULTING

Bugs and requests

Cambridge Reader

Reported bugs

42 issues
  • Randomly goes back a page
  • App doesn't fit screen
  • Cannot split screen
  • App glitches and freezes
  • App crashes frequently
Show 37 more
  • Books disappear or don't load
  • Login issues (invalid credentials, password problems, spaces in password)
  • App reloads after switching apps
  • Textbooks not showing up
  • Outdated codes
  • Cannot register/add books
  • Pages not loading
  • App resets when closed
  • Notes disappear
  • Cannot scroll horizontally
  • Lack of landscape mode
  • Lack of zoom functionality
  • App is slow and laggy
  • App doesn't support split screen
  • App quits unexpectedly
  • Book codes not working
  • Book codes need to be entered every time
  • Cannot download more than a few books
  • Page select/scroll bar is difficult to use
  • Books not appearing in account after login
  • App doesn't show full page
  • Password reset not available
  • App doesn't work on iPad
  • App is worse than previous version
  • Cannot zoom out
  • App doesn't allow horizontal scrolling
  • Updated version available but book doesn't update
  • Cannot flip to next pages
  • App pauses the screen
  • Login loop with Cambridge.go account
  • Book disappears after adding both workbook and student book
  • Bookmark not showing
  • App is not compatible with iPhone 7 screen size
  • UI is clunky
  • Page closes when touched the wrong way
  • App is skunk
  • User interface looks like ayoos

Requested features

11 requests
  • Add landscape mode for iPhones
  • Allow split screen functionality
  • Improve scrolling (horizontal and vertical)
  • Fix page loading issues
  • Enable note-taking within the app
Show 6 more
  • Improve zoom functionality
  • Add animations
  • Fix issues with adding books/resources
  • Allow access to all subscribed titles on mobile
  • Make the app fill the whole screen on iPad Pros
  • Add password reset functionality

Ouistiti Maths

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Cambridge Reader

No in-app purchases

3 purchases

Ouistiti Maths

Subscriptions2
  • Ouistiti Pro — Monthly$0.991 Month
  • Ouistiti Pro — Yearly$8.991 Year
One-time1
  • Ouistiti Pro — Lifetime$17.99

Questions

Is Cambridge Reader free?
Cambridge Reader is free to download, with no in-app purchases.
Is Ouistiti Maths free?
Ouistiti Maths is free to download, with in-app purchases available.
Do Cambridge Reader or Ouistiti Maths have ads?
Neither Cambridge Reader nor Ouistiti Maths shows ads.
Which is updated more often, Cambridge Reader or Ouistiti Maths?
Cambridge Reader ships an update every 6 months, and Ouistiti Maths every 5 days. Most recently, Cambridge Reader was updated on October 14, 2026 and Ouistiti Maths on October 18, 2026.

Other comparisons