01 Zero One vs Words on a Train
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
01 Zero One
A simple and easy numbers game where players tap zero or one based on the first digit of incoming numbers. Avoid tapping incorrect numbers to progress. It's a quick test of reflexes and number recognition.
- Tap zero or one
- React to incoming numbers
- Avoid wrong taps
- Simple gameplay
- Number recognition
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Tap zero if the first number of the wave is zero, Tap one if the first number of the wave is one, Don't tap on wrong numbers.
Words on a Train
Spell valid English words using letters from passing train cars. The game speeds up as you progress, offering a challenge with ten-letter words. Share your high scores and compete with friends.
- Spell words from passing train cars
- Increasing speed and challenge
- Ten-letter word opportunities
- High score sharing
- Challenge friends
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All Aboard! Welcome to "Words on a Train". After you tap on your screen, a train will pass by with four letters on each car. You can pick only letter per car. You don't have to tap on a letter on every car, but you must spell out a valid English word before the train passes you by. Succeed, and you get another attempt! Keep going! The trains get faster, the action gets more frantic, and every train contains four ten-letter winners! Share your high scores and challenge your friends! Word list provided by the good people at Infochimps.
Screenshots
Verdict
The clearest difference is ads: Words on a Train at none against 01 Zero One's shown. Words on a Train also leads on update cadence (daily vs every 24 months) and monetization model (free vs ad-supported). 01 Zero One's advantage is iOS requirement (9.0 vs 18.2). On price, rating, ratings volume and in-app purchases 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.
On the App Store both sit at effectively the same score — 5.0 for 01 Zero One against 5.0 for Words on a Train. Both are backed by a comparable volume of ratings — 4 and 4 respectively.
01 Zero One ships an update every 24 months, Words on a Train daily. The most recent releases landed on October 5, 2026 and October 8, 2026 respectively.
| Parameter | 01 Zero One | Words on a Train |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) | 5.0 (4 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 | 4 |
| Update frequency | Every 24 months | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 41 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Anas Almomany | Michael O’Brien |
Customer experience
01 Zero One
Words on a Train
In-app purchases
01 Zero One
No in-app purchases
Words on a Train
No in-app purchases
Questions
Is 01 Zero One free?
Is Words on a Train free?
Which has better reviews, 01 Zero One or Words on a Train?
Do 01 Zero One or Words on a Train have ads?
Which is updated more often, 01 Zero One or Words on a Train?
Other comparisons
