Comparison

ThinkByte vs DocLib Vault

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ThinkByte

This AI assistant operates entirely on your device, offering private and fast responses without internet access. It's ideal for brainstorming, learning, and getting writing support, ensuring your data remains secure and local.

Highlights
  • Fully offline AI operation
  • Private and secure on-device data
  • Instant AI responses
  • Choice of local AI models
  • Writing and learning support
  • No accounts or tracking
Read full description

ThinkByte is an AI assistant that runs on your iPhone instead of in the cloud. Ask it a question, talk to it, or show it a photo, and it answers right on the device. Nothing connects to a server, so it works the same on a flight, on the subway, or anywhere with no signal. Your conversations stay on your phone and are never uploaded. Type or talk. Use the keyboard, or hold the mic and speak. ThinkByte takes voice and images, not just text. Choose your model. Download a small, fast model or a larger one for tougher questions, right from the app. More get added over time. Private by default. No account. No sign-up. Your chats never leave your phone. Anonymous diagnostics are optional and you can turn them off in Settings. Built for real life: Flights and travel Subways, basements, and dead zones Limited or expensive data plans Anyone who would rather keep their conversations off other people's servers Download ThinkByte and start chatting, fully offline.

About

DocLib Vault

Securely store and organize photos, videos, documents, and notes locally on your device. Offers robust import options, advanced file management, and built-in viewers for various media types. Pro version unlocks deeper features like OCR and enhanced multi-play.

Highlights
  • Local-first private vault
  • Import from multiple sources
  • Folder and tag organization
  • Built-in viewers for various file types
  • Markdown and PDF editing
  • Encrypted backup and restore
  • Passcode and Face ID protection
Features
Read full description

DocLib is a local-first private vault for photos, videos, files, audio, and notes. Import from Photos, Files, Camera, document scan, direct HTTPS links, the Share Sheet, clipboard, Private Browser, or your computer over local Wi-Fi. No account required. Your content stays on your device by default unless you choose to export, share, or create a backup. Keep everything organized with folders and subfolders, tags, favorites, smart folders, filters, search, and Recently Deleted. Create secure Markdown or plain-text notes, convert supported PDFs and text files into Markdown, view Markdown with rich formatting, preview code files with syntax highlighting and line numbers, search inside PDFs, and mark up PDFs right in the app. Choose from built-in themes and app icons to make the vault feel like yours. DocLib is built for private everyday use: - Passcode and Face ID protection - Built-in viewers for photos, videos, audio, PDFs, Markdown, code, and common document types - Photo slideshows with interval controls - Photo and video Randomizer with folder selection, adjustable tile counts and timing, fit/fill, and optional automatic changes - Photo grids with up to 32 tiles - Custom browser homepages and startup tabs - Mute media for saved media and browser playback, with an info button explaining browser and system audio limitations - Video playback speed controls, mute, loop, mini-player behavior, and swipe-down actions - Multi-Play for watching multiple videos at once with shared controls for play/pause, mute, playback speed, filters, orientation, reordering, and add/remove - Video and audio trim tools, plus compression to save space - Fast import from the Share Sheet, Private Browser, clipboard, and local Wi-Fi Transfer - Encrypted backup and restore with reminder scheduling DocLib Pro adds deeper power features: - Deep Vault with separate passcode, biometrics, and reveal controls - Up to 12 video tiles in Multi-Play and Randomizer, plus duplicate Multi-Play tiles - Resume playback, background audio, and Picture in Picture - On-device OCR and full-text indexing for documents, PDFs, images, and many code/text formats - Selective restore from encrypted backups - Larger link downloads up to 5 GB - Video merge - Per-type library layouts, custom backgrounds, more app icons, and advanced privacy controls Private by default. Fast to use. Built for the things you actually want to keep. Have an idea? Send a feature request from the app. DocLib keeps getting better through real user feedback.

Screenshots

ThinkByte4 screens
DocLib Vault4 screens

Verdict

The call

The clearest difference is rating: DocLib Vault at 5.0 against ThinkByte's 4.2. ThinkByte's advantage is ratings volume (12 vs 2). On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ThinkByte sells 1 one-off in-app purchase and DocLib Vault sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

DocLib Vault holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: ThinkByte has 12 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

ThinkByte ships an update fortnightly, DocLib Vault every 3 weeks. Both last shipped on October 24, 2026.

Scorecard2 real differences · 8 level
ThinkByte versus DocLib Vault: the parameters behind the verdict, then further details
ParameterThinkByteDocLib Vault
PriceFreeFree
Rating4.2 (12 ratings)5.0 (2 ratings) — better
Positive reviews50.0% of reviews—
Number of ratings12 — better2
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS17.0 — better17.6
Further details — not scored
Size64 MB216 MB
Age rating4+17+
DeveloperByteInk L.L.C-FZTyler Mattingly

Customer experience

ThinkByte

All ratings5 ratings
Positive60.0%
Neutral20.0%
Negative20.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

DocLib Vault

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

ThinkByte

One-time1
  • Lifetime Premium$9.99
2 purchases

DocLib Vault

Subscriptions2
  • DocLib Pro Monthly$2.991 Month
  • DocLib Pro Yearly3 Months trial$19.991 Year

Questions

Is ThinkByte free?
ThinkByte is free to download, with in-app purchases available.
Is DocLib Vault free?
DocLib Vault is free to download, with in-app purchases available.
Which has better reviews, ThinkByte or DocLib Vault?
DocLib Vault is rated higher. ThinkByte averages 4.2 out of 5 from 12 ratings, while DocLib Vault averages 5.0 from 2 ratings.
Do ThinkByte or DocLib Vault have ads?
Neither ThinkByte nor DocLib Vault shows ads.
Which is updated more often, ThinkByte or DocLib Vault?
ThinkByte ships an update fortnightly, and DocLib Vault every 3 weeks. Most recently, ThinkByte was updated on October 24, 2026 and DocLib Vault on October 24, 2026.

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