Gamebook Engine vs AiGoodbye
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gamebook Engine
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Gamebook Engine is an all-in-one app for creating and reading gamebooks, a type of interactive fiction where the player's choices influence the outcome of the story. With Gamebook Engine you can: • Create gamebooks - Write interactive choosable path adventure stories using a thoughtfully designed interface • Share gamebooks - Gamebooks export to a plain text ".gbook" file that you can send to your friends via email, text message, or carrier pigeon (if the story is very short) • Play gamebooks - Gamebook Engine can import and play ".gbook" files, which contain the data for interactive stories What makes Gamebook Engine special? • Attributes can make gamebooks dynamic: Attributes can be used to track changes in inventory, player stats, NPC relationships, and much more. This makes Gamebook Engine stories a little more dynamic than a classic paperback choosable path story. • Warning, nerd talk: Gamebooks export to plain-text JSON, not a proprietary file-type, so you can easily share them as privately or publicly as you want, and anyone can build a client for reading them -- but why bother when Gamebook Engine is a reader already! • Total Privacy: Gamebook Engine has no online services or accounts. Gamebook Engine runs entirely on your device and never sends any data about you or what you are writing to anyone. Your privacy is totally and absolutely guaranteed. Your writings only leave your device when you share them with someone.
AiGoodbye
This AI assistant operates entirely offline, ensuring complete privacy as all conversations remain on your device. Enjoy powerful AI capabilities without internet access or subscription fees.
- 100% Offline operation
- Complete privacy, no data leaves device
- No subscriptions required
- No account needed
- Conversation context memory
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Your private AI that lives on your device. Free, with no cloud, no accounts and no ads. AiGoodbye runs powerful AI models entirely on your iPhone and iPad. Talk to it, record a meeting, translate a conversation, scan a document or point the camera at the world. Nothing you type, say or show it ever leaves your device. TALK - Hands-free voice conversations, fully offline - Interrupt any time; it listens again on its own RECORD MEETINGS - Transcribes on your device as you speak, for hours - One tap for a summary with key points and action items - Keeps going with the screen locked; nothing is uploaded TRANSLATE - Two-way spoken translation between 13 languages, offline - Hands-free mode for real conversations across a table SEE - Ask about photos, screenshots and handwritten notes - Scan paper documents into text - Describe Surroundings: hear what the camera sees, built for blind and low-vision users READ YOUR DOCUMENTS - Ask questions about PDFs and text files - A private Knowledge Library the AI can draw on in every chat MAKE IT YOURS - Personas change how it answers - Private memory: say "Remember that..." and it stays on this device - Siri, Shortcuts, widgets, Control Center and the share sheet PRIVATE BY CONSTRUCTION - Privacy Center shows what the app connects to, and when - Face ID lock - App Privacy label: Data Not Collected CHOOSE YOUR AI - Apple Intelligence: instant, no download, on supported devices - Qwen3 Vision 2B: recommended, understands images, 30+ languages - Qwen3.5 Vision 4B: the smartest model for iPhone, including iPhone 17 Pro, iPhone 18 Pro and iPhone Duo - Qwen3.5 Vision 9B Pro and Gemma 4 E4B: our most capable models, for iPad and Mac - Also Qwen3.5 Vision 0.8B and 2B, Gemma 4 E2B from Google, Qwen3 Vision 8B and Smol Vision 500M - Or bring your own model from Hugging Face COMPLETELY FREE - Every feature, with no subscriptions, no in-app purchases and no ads Downloaded models need 0.7 to 6 GB of free space (one-time download, Wi-Fi recommended). Apple Intelligence requires a supported device with Apple Intelligence turned on. AiGoodbye only offers the models your device can run. Say goodbye to subscriptions, data tracking and cloud dependency. Say hello to AI that is truly yours.
Screenshots
Verdict
The clearest difference is price: AiGoodbye at Free against Gamebook Engine's $4.99. Gamebook Engine's advantage is iOS requirement (15.6 vs 26.0). On 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
AiGoodbye is free to download; Gamebook Engine costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Gamebook Engine | AiGoodbye |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | — | Every 2 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 3 MB | 34 MB |
| Age rating | 4+ | 12+ |
| Developer | Brad Root | Dmitry Mikhaylov |
In-app purchases
Gamebook Engine
No in-app purchases
AiGoodbye
No in-app purchases








