ClipStitch — Support

Merge videos at lightning speed, with timestamps and YouTube chapters.

Quick start — merge videos in 5 steps

Open the Home tab. Your recent videos appear grouped by date. Tap individual clips to add them to the merge queue, or tap a date header to select every video from that day in one tap.
Reorder and review. Drag videos in the selection tray to rearrange the merge order. Tap Preview to see generated timestamps before you commit.
Edit the title. ClipStitch auto-generates a title from the first video's date (and place name if available). You can edit it freely.
Tap Merge. ClipStitch detects whether all clips share the same codec & resolution. When they do, it uses fast passthrough mode — no re-encoding, so a 30-minute merge can finish in seconds.
Save or upload. Save the merged video to your Camera Roll, copy the timestamps for YouTube chapters, or upload directly to YouTube from the app.

Tip: If you merge clips from the same day, ClipStitch can toggle "use first video's creation date" so the merged video lands in the correct spot in your Camera Roll timeline, not at today's date.

What ClipStitch does

Timestamp overlays — Three modes: time only, time + date, or time + place (uses video location metadata). Formatting is customizable in Settings.
Fast passthrough merge — Automatic codec & resolution detection. Merges without re-encoding when compatible, falling back to re-encode only when needed.
Smart title generation — Auto-fills titles with the video's date and place name extracted from metadata.
YouTube chapter export — Timestamps are copy-ready for YouTube's chapter format, so your merged video gets scrubbable chapters automatically.
Direct YouTube upload — Multi-account, multi-channel, playlist selection, privacy control (public/unlisted/private), live metadata editing during upload.
Batch queue — Queue up several merge jobs and let ClipStitch process them one after another.
Merge history — Every merge is saved with thumbnail, source list, and YouTube link. Jump back to any past merge.
Files app support — Import videos from the Files app, not just from your Camera Roll.
iCloud Photo Library support — If a clip isn't downloaded, ClipStitch fetches it automatically.
Encoding quality options — High / Medium / Low when re-encoding is required for mixed-source merges.

Screens at a glance

Home — Select videos from your Camera Roll or Files, reorder the merge queue, and start a merge.
Queue — See pending and running merge jobs when you've queued up more than one.
History — Browse past merges with thumbnails. Re-save, re-upload, or open on YouTube.
Settings — Subscription, timestamp formatting, encoding quality, YouTube account management, cache cleanup, onboarding tutorial.

YouTube upload

ClipStitch uploads to YouTube via the official YouTube Data API with your explicit consent.

First-time setup

Go to Settings → YouTube.
Tap Add account. You'll be taken to Google Sign-In in a secure browser view.
Grant the permissions ClipStitch requests — specifically youtube.upload and youtube.readonly. ClipStitch uses these only to list your channels / playlists and to upload videos; it never reads your viewing history, subscriptions, or private data.
You'll be returned to the app and your Google account will be listed.

Uploading a merge

After a merge finishes (or from History), tap Upload to YouTube.
Pick your channel (if you have multiple), set title & description, pick a playlist, and choose privacy (public / unlisted / private).
Tap Upload. You can watch progress in real time, and even edit the title during upload — the app will send the updated metadata when the upload finishes.

Multiple Google accounts

Add as many accounts as you need. Swipe to remove one. The active account is the one used for the next upload.

Timestamps as chapters: The timestamps ClipStitch generates are copy-ready for YouTube's chapter format. After upload, ClipStitch can paste them into the description for you so the video gets scrubbable chapter markers automatically.

Free vs Pro

Feature	Free	Pro
Merges per month	3	Unlimited
Timestamp overlays	✅	✅
Fast passthrough mode	✅	✅
YouTube upload & chapters	✅	✅
Save to Camera Roll	✅	✅
All future Pro features	—	✅

Pro is available as:

Monthly ongoing subscription
Annual discounted — roughly two months free
Lifetime one-time purchase, forever

The free tier gives you 3 merges every month, resetting on the 1st. Your merge count is validated against server time so it's consistent across devices.

FAQ

Do merged videos stay on your servers?

No. ClipStitch has no server. Every merge happens entirely on your device. Merged videos are saved to your Camera Roll (and/or uploaded to your YouTube when you explicitly ask). We never see or store your videos.

Will the merge re-encode my videos and lose quality?

Only when it has to. ClipStitch first checks whether all selected videos share the same codec and resolution. If they do — which is common if they were all shot on the same device — it uses passthrough mode, which merges without re-encoding. There's no quality loss and the merge is very fast.

When the videos are mixed (different resolutions or codecs), re-encoding is unavoidable. You can pick encoding quality in Settings.

Why is the app asking for YouTube permissions?

ClipStitch uses the YouTube Data API to list your channels and playlists, and to upload videos — only when you tap Upload. It never reads your watch history, subscriptions, or any other data. You can disconnect your Google account at any time in Settings → YouTube.

Can I use ClipStitch without connecting YouTube?

Yes. YouTube integration is optional. You can merge, preview, save to Camera Roll, and manage history without ever signing in to Google.

My merge credits seem wrong / I upgraded to Pro but still see the limit

Go to Settings → Subscription and tap Restore purchases. StoreKit will re-sync with the App Store. If the problem persists, please send us a note via the form below including your App Store purchase date.

Where are temporary merge files stored? Can I clean them up?

While a merge is in progress, ClipStitch writes temporary files to its cache. These are automatically cleared when you save or discard the result, but you can also clear them manually in Settings → Cache. Clearing the cache does not affect videos already saved to your Camera Roll or uploaded to YouTube.

Does ClipStitch work on iPad?

ClipStitch is designed for iPhone and iOS 26+. iPad support is under consideration — let us know if you'd use it.

How do I delete the source videos after merging?

After a successful merge and save, ClipStitch offers an optional "Delete source videos" action. This is opt-in per merge — we never delete anything without your explicit tap.

Contact

Questions, feedback, bug reports — send them via the form below. We read everything and reply as soon as we can.