Frotz vs Number Nine
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Frotz
Experience classic text-based adventure games on your mobile device. Relive the golden age of interactive fiction with hundreds of free titles, supporting various game formats. Perfect for those who enjoy reading, thinking, and typing their way through immersive stories.
- Play hundreds of free interactive fiction games
- Supports Z-Machine, glulx, and TADS formats
- Relive classic text adventures
- Modern interface with high-resolution fonts
- Play on iPhone and iPad
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[*Warning* Playing Frotz involves reading, thinking, and typing. If you just want to blow stuff up, this is not the app for you!] Burned out on all the new-fangled graphics and dazzling eye candy on your shiny new iPhone or iPad? Nostalgic for a simpler time? Then take advantage of those crisp high-resolution fonts to relive the glory days of the Great Underground Empire, or play any of hundreds of great works from the Interactive Fiction archive. Frotz lets you play hundreds of free works of Interactive Fiction (a.k.a. text adventure games) on your iPhone or iPad. Frotz plays titles written in the Z-Machine format (which was invented by Infocom and was used to produce classic text adventures from the 80s such as the Zork Trilogy, Hitchhiker's Guide to the Galaxy, and Trinity), as well as glulx and TADS formats. In the past couple of decades, text adventures have experienced a renaissance of sorts due to the efforts of a diverse Internet community of talented interactive fiction writers and fans. Many of these games are written using the same engine that powered Infocom's titles, thanks to the Inform compiler and authoring system created by Graham Nelson. NOTE! If you have suggestions for improving Frotz or encounter bugs, please go to the support link and report them. Frotz for iOS - Interactive Fiction at Your Fingertips
Number Nine
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A story you receive, not read. Your estranged brother is dead. He has left you a house where the land gives up and becomes marsh, a war-surplus shortwave receiver, and nineteen years of listening logs kept in a hand that never once wavered. On the fourteenth of June his entries stop mid-sentence. Every night after it is blank. Tune the set. There is a station where none should be: a music box running down, and then a woman counting in groups of five, unhurried, as though she had every night in the world and meant to spend them one at a time. She has been counting for nineteen years. Tonight she says your name. SIX BROADCASTS One a night. The prose is the map. It turns, it mirrors, it goes down the cellar stairs and climbs back up them, and you turn the phone in your hands to follow it, because the room turned and not the typeface. Fifty locks stand between the first page and the last. None of them is a quiz, and none is answered by choosing the right option from a list. The house asks things of you and it asks fairly. Nothing it asks for is missing from the book. WHAT IT ASKS Patience, and something to write with. Some of these will hold you up for an evening. By the sixth broadcast you will be going back through notes you made in the first. Nothing is timed and nothing can be lost, so an evening spent stuck is an evening spent in the house. HER VOICE Recorded, not synthesised. A woman reading numbers in the register of a speaking clock, coming up out of shortwave static. Sound is atmosphere here and never information, so a reader in silence loses nothing but the dread. BROADCAST ONE IS FREE The whole first chapter, start to finish. No account, no trial clock. The other five unlock with one purchase, paid once, never a subscription. TONIGHT'S SIGNAL, FREE FOREVER Every night the station sends a new cryptogram, and every listener on earth gets the same one. She does not always send it the same way. A few minutes to break. Behind a year of them lies a dead man's log, 365 nights of it, in order and a night at a time: the year before Broadcast One, and how a patient man came to be sitting in that cellar. Keep a streak and you are reading a second story for nothing. No ads. No tracking. No account. No timers, no energy, no notifications. It honours the text size you have set, and it works with the aeroplane switch on. Headphones on. Lights off. One broadcast a night.
Screenshots
Verdict
The clearest difference is in-app purchases: Frotz at none against Number Nine's 1. Frotz also leads on device support (3 vs 1) and iOS requirement (11.0 vs 16.4). On price and ads 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. Number Nine sells 1 one-off in-app purchase. Frotz asks for nothing beyond the download.
| Parameter | Frotz | Number Nine |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (259 ratings) — better | — |
| Positive reviews | 90.8% of reviews | — |
| Number of ratings | 259 — better | — |
| Update frequency | Every 5 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 45 MB | 63 MB |
| Age rating | 9+ | 12+ |
| Developer | Craig Smith | Simon Shih |
Bugs and requests
Frotz
Reported bugs
2 issues- Crashes when trying to resume certain saved games
- Inconsistent behavior when deleting or importing games
Requested features
4 requests- Add support for more modern interactive fiction formats
- Implement cloud sync and cross-device save support
- Improve game library management and discovery
- Add more customization options for text display
Number Nine
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Frotz
No in-app purchases
Number Nine
- The Licence$5.99









