If you're preparing your child for the 11+, you've almost certainly come across Atom Learning. It's one of the biggest names in the space, used by tens of thousands of families across the UK. You may also have come across Cognithix, which takes a very different approach to the same problem. Both are serious preparation tools built by people who understand the 11+ exam. But they're built on different philosophies, cover different ground, and suit different families. This is an honest comparison of both, including where each one falls short.
Full disclosure: we make Cognithix. We've done our best to be fair about Atom Learning's strengths, and we'd encourage you to try both before deciding. If you want a broader overview of all the options available, our complete 11+ preparation guide covers apps, books, tutors, and how they fit together.
Atom Learning is a web-based platform that runs in a browser on any device. It's been around since 2018 and has built a large library of teacher-authored content. Here's what it offers:
It's a polished, well-established platform. The video lessons in particular are something that many families value, especially for children who benefit from having a concept explained before diving into practice questions.
Cognithix is a native iOS app that takes a fundamentally different approach. Rather than drawing from a fixed question bank, it generates questions on-device using algorithmic engines. Here's what it offers:
It doesn't include video lessons, and it only runs on Apple devices. But it covers ground that no other 11+ app currently does.
This is the single biggest differentiator between the two apps, and for some families, it will make the decision for you.
If your child's target school includes a Language Aptitude Test in its entrance exam, your preparation options narrow dramatically. The LAT tests a child's ability to learn an unfamiliar language on the spot -- using invented vocabularies, constructed grammar systems, and pattern-based language exercises. It's deliberately designed to be different every year, which makes it one of the hardest parts of the 11+ to prepare for.
Atom Learning does not currently cover LAT. This isn't a criticism -- most 11+ platforms don't. The LAT is a niche component used by specialist language schools, and it's genuinely difficult to build preparation content for because the whole point of the test is that the material is unfamiliar.
Cognithix does cover LAT. It includes exercises built around real Latin vocabulary and grammar, constructed languages with learnable rules, hidden word detection, number systems in fictional languages, and pattern-based language tasks. Because the questions are generated algorithmically rather than drawn from a fixed bank, your child gets fresh LAT material every time they practise -- which mirrors the experience of the actual exam, where everything is unfamiliar by design.
If LAT is part of your child's exam, Cognithix is currently the only app that covers it. If LAT is not part of your child's exam, this particular advantage doesn't apply, and the comparison becomes more nuanced.
| Atom Learning | Cognithix | |
|---|---|---|
| Subjects | English, Maths, VR, NVR | English, VR, NVR, LAT |
| LAT prep | No | Yes |
| Pricing | ~£48--56/month subscription | One-time purchase |
| Platform | Web browser (any device) | iOS (iPhone, iPad) |
| Offline access | No (requires internet) | Yes (fully offline) |
| Question supply | 70,000+ fixed questions | Unlimited (generated on-device) |
| Video lessons | Yes | No |
| Parent dashboard | Progress reports | Struggle-pattern detection, accuracy and speed tracking |
| Data storage | Cloud-based | On-device only |
| Free trial | Yes | Yes |
A quick note on subjects: Atom Learning covers Maths, which Cognithix does not. Cognithix covers LAT, which Atom Learning does not. If your child needs both Maths and LAT preparation, you may want to consider using both tools, or supplementing one with workbooks. Our guide to GL vs CEM exam formats can help you work out exactly which subjects your target school tests.
We'd be doing you a disservice if we didn't acknowledge where Atom Learning genuinely has the edge. Here are the areas where it comes out ahead:
Video lessons. This is Atom Learning's standout feature, and Cognithix has nothing equivalent. If your child is encountering a concept for the first time -- say, a particular type of verbal reasoning question they've never seen -- Atom's short video lessons explain the approach before they start practising. For children who need that initial explanation, this is genuinely valuable.
Multi-device access. Because Atom runs in a browser, it works on Windows laptops, Chromebooks, Android tablets, iPads, and phones. Cognithix requires an Apple device. If your household runs on Android or your child uses a school Chromebook for practice, Atom is the more practical choice.
Maths coverage. Atom Learning includes a full Maths curriculum alongside its English, VR, and NVR content. Cognithix does not cover Maths. If you want a single app that handles everything including Maths, Atom is the more complete package (with the caveat that it still lacks LAT).
Larger community and track record. Atom Learning has been running since 2018 and is used by a very large number of families. There's a substantial body of parent reviews, forum discussions, and real-world results data. That history brings a level of confidence and social proof that a newer app simply hasn't had time to build.
Teacher-authored content. Every question in Atom's bank has been written by an experienced teacher. There's a craftsmanship to hand-authored content that some parents prefer over algorithmically generated questions -- particularly for English comprehension passages, where the quality of the source text matters.
And here's where Cognithix has genuine advantages:
LAT coverage. This has been covered above, but it bears repeating: if your child needs to prepare for the Language Aptitude Test, Cognithix is the only app that offers it. The LAT exercises cover Latin-based vocabulary work, constructed language grammar, hidden word detection, fictional number systems, and pattern-based language reasoning. No other app on the market currently provides this.
Offline access. Cognithix works without any internet connection. Questions are generated on the device itself, so your child can practise on the train, in a waiting room, on holiday, or anywhere else where Wi-Fi isn't available. Atom Learning requires an active internet connection for every session.
Unlimited fresh questions. Because questions are generated algorithmically, your child never exhausts the supply. There's no risk of them memorising answers from repeated exposure to the same questions. Every session is genuinely new material. This is particularly important for children who practise heavily over many months -- a fixed question bank, however large, eventually runs dry.
One-time pricing. You pay once. There is no recurring subscription, no need to remember to cancel, and no accumulating cost over an 18-month preparation period. For families on a budget, or those who simply dislike the subscription model, this is a meaningful difference.
Privacy. All of Cognithix's processing happens on your child's device. Practice data, performance history, and personal information are never uploaded to external servers. In an era where children's data privacy is an increasing concern, on-device processing is a fundamentally more protective approach. Atom Learning, like most web platforms, stores data in the cloud.
Smarter parent insights. Cognithix's parent dashboard goes beyond simple progress tracking. It detects patterns that are easy to miss: rushed guessing (when a child starts tapping answers too quickly to be reading the questions properly), declining accuracy within a session (a sign of fatigue or loss of focus), and persistent weaknesses in specific question types. These patterns help you intervene at the right moment rather than discovering a problem after weeks of unproductive practice.
There's no single right answer. The best choice depends on your child's specific needs, your target school's exam format, and your family's practical circumstances. Here's a decision framework:
The two apps genuinely complement each other. Atom Learning's video lessons and Maths content fill a gap that Cognithix doesn't cover. Cognithix's LAT preparation, offline capability, and unlimited question generation fill gaps that Atom doesn't cover. Using both is not redundant -- it's using each tool for what it does best.
The 11+ preparation market has improved enormously over the past few years. Both Atom Learning and Cognithix are well-built tools that respect your child's time and your investment. Neither is a magic bullet -- consistent practice, adequate rest, and a calm home environment matter far more than which app you choose.
If you're still unsure, try both free trials. Watch how your child responds to each approach. Some children thrive with video instruction; others prefer to dive straight into practice. Some need offline access; others are always near Wi-Fi. The best app is the one your child will actually use, willingly and regularly, over the months of preparation ahead.