I’m building a tiny suite of offline AI tools for iPhone

Hey Indie Hackers 👋
I’m David, an indie iOS dev building a tiny suite of offline AI tools under the name FanStudio – everything runs on your device, no account, no tracking.
Landing page: https://fanstudioapps.com
Over the last few months I’ve shipped two little utilities that came out of my own annoyances with iPhone storage and messy paperwork:

1. Photo Space Saver — for the “iPhone Storage Almost Full” people
   My Photos library kept filling up:
bursts of almost-identical shots, slightly blurry takes, random screenshots, and big videos I forgot about.
Going through them in the Photos app felt endless, and I didn’t love giving a cloud service full access to my camera roll.
   So I built Photo Space Saver:

• Scans your library on-device and groups similar / blurry photos
• Surfaces screenshots, screen recordings, and large videos that eat storage
• Offers Smart Select suggestions that respect favorites, edits, faces, and recent shots
• Sends deletions through Recently Deleted so you can undo mistakes
• 100% offline – no uploads, no server component
  The idea: open it once in a while, free a few GB, and get rid of that “Storage Almost Full” banner.
  (App Store: search for “Photo Space Saver” – or I’ll drop the link in the comments.)

2. DocSnap — scan, OCR, and summarize docs offline
   The other pain: paperwork scattered everywhere.
Receipts in email, contracts in chats, tickets as screenshots, medical notes as PDFs… and I never remember the important parts when I actually need them.
   I wanted something that could:

• Capture or import a document once
• Turn it into searchable text
• Give me a short summary so I remember amounts, dates, key clauses without re-reading everything
• Do all of that without sending my documents to a random AI server
  That became DocSnap:
• Scan paper or import PDFs / images
• Run OCR entirely on-device
• Generate short summaries and bullet points you can skim
• Auto-suggest categories like Finance, Legal, Medical, Travel, etc.
• Export PDFs or text into Files / Notes / your task manager
  It’s not trying to be a giant document management system – just a small habit:
whenever you see an important document, you scan/import it, tag it, and move on.
  (App Store: search for “DocSnap & Summarize” – link also in comments.)

Why offline?
A lot of AI tools assume you’re happy uploading everything.
Personally I’m not, especially for:

• personal photos and videos
• financial / legal documents
• anything that includes other people’s info
  So my rule for these apps is: if it can’t run on-device, I don’t ship it.
  No accounts, no analytics SDKs, small binaries, and one-time unlocks instead of subscriptions.

What I’d love your feedback on

• If you were using these, how would you prefer to pay: one-time per app, a bundle, or something else?
• For people with crowded photo libraries or document chaos: what’s missing for this to be genuinely useful?
• Any other “offline AI” utilities you wish existed on iPhone?
  Happy to share technical details (Core ML, on-device summarization), numbers, or mistakes I’ve already made if that’s interesting.
  Thanks for reading, and if you try either app I’d really appreciate honest feedback – especially around onboarding and trust 🙏