SequenceTrainer vs Span N
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SequenceTrainer
This app helps improve working memory by presenting sequences of digits or letters to memorize and reorder. It tracks progress with statistics and allows for custom exercises to suit diverse abilities.
- Memorize digit and letter sequences
- Reorganize and re-enter sequences
- Weighted scoring for improvement
- Automatic sequence length adjustment
- Progress statistics and past results
- Customizable exercise options
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SequenceTrainer is designed to help exercise and track the health of a person's working memory. It should also be of benefit to those preparing for the WAIS-IV and WISC-V assessments. SequenceTrainer presents the user with random sequences of either digits or letters to memorise, after which they must reorganise the sequence according to the specific test type and then reenter the result for scoring. Scoring is weighted to encourage improvement, while the length of sequence is automatically increased, in step with the user's ability. Multiple statistics chart the user's progress and past test results are stored for future revision. The app supports extensive options for creating custom exercises that accommodate a wide range of users, with diverse cognitive, and physical abilities.
Span N
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Train your brain with the gold standard of cognitive training. Span N-Back is a scientifically-designed working memory training app based on the dual n-back task — the only cognitive training method shown in peer-reviewed research to improve fluid intelligence. WHAT IS N-BACK TRAINING? The n-back task challenges you to remember sequences of positions and sounds, then identify when the current stimulus matches one from "n" steps back. It's simple to learn but progressively challenging, keeping your brain in the optimal training zone. WHY SPAN N-BACK? • Research-Based Design — Built on the Jaeggi dual n-back protocol used in cognitive science studies • Precision Timing — Sub-20ms stimulus accuracy for reliable training • Progressive Difficulty — Levels 1-9 adapt to your growing abilities • Dual Modality — Train visual and auditory working memory simultaneously • Detailed Analytics — Track accuracy, reaction time, and progress over time • Privacy First — All data stays on your device. No accounts, no tracking. WHO IS THIS FOR? Whether you're a student preparing for exams, a professional seeking mental edge, or anyone interested in cognitive fitness — consistent n-back training can help sharpen focus, improve working memory capacity, and enhance mental agility. FEATURES • Clean, distraction-free interface • Visual and audio training modes • Session history and performance tracking • Export your data (JSON/CSV) • Dark mode support • Designed for daily practice Start with 2-back and work your way up. Just 15-20 minutes daily can make a difference. Download Span N-Back and train smarter.
Screenshots
Verdict
The clearest difference is iOS requirement: SequenceTrainer at 9.3 against Span N's 16.0. On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | SequenceTrainer | Span N |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.3 — better | 16.0 |
| Further details — not scored | ||
| Size | 10 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Origami Tesseract Ltd. | Jerzy Plocha |
In-app purchases
SequenceTrainer
No in-app purchases
Span N
No in-app purchases







