Comparison

Zync AI vs Subly

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

Head to head
About

Zync AI

Features
Read full description

Zync is your all-in-one Recording Studio designed to make video creation effortless and stress-free. With auto-generated scripts from your ideas or blog posts and a unique Segmented Recorder, Zync allows you to record videos in bite-sized chunks, eliminating the need for memorizing lengthy scripts. The Studio captures videos in FullHD, ensuring your content looks professional and polished. Whether you’re sharing thought leadership or crafting social media clips, Zync helps you create authentic, high-quality content in minutes. Beyond recording, Zync automates the entire content production and distribution process. It transforms your footage into professionally edited videos with jump cuts, captions, B-roll, and music, ready for any format—portrait, landscape, or square. With built-in social media integrations, you can create one-click posts and auto-generated, on-brand webpages that sync seamlessly with your custom domain. Zync empowers creators and businesses to focus on their message while handling the heavy lifting of production and publishing.

About

Subly

Easily add animated, word-by-word captions and AI-generated narration to your videos. This app processes everything on your device, ensuring privacy and offline functionality. Edit clips, add music, and export in professional formats without recurring fees.

Highlights
  • Word-by-word animated captions
  • On-device AI narration
  • Full video editing suite
  • Offline functionality
  • One-time purchase
  • SRT/VTT export
  • Vertical reframing
Features
Read full description

Requires a Pro subscription or a one-time lifetime purchase. New users can start with a free trial. Caption, edit, and narrate short videos — all on your iPhone, all private. Start with a free trial. No credits that "run out." No account. Your video never leaves your device, so it even works in airplane mode. • WORD-BY-WORD CAPTIONS — animated, karaoke-style highlight with a live preview. • SUBLY PRO — no watermark, unlimited full-quality export. Yearly, weekly with a free trial, or a one-time lifetime unlock. • ON-DEVICE & PRIVATE — no servers, no uploads, no account. Cloud editors send your footage away and take broad rights to it; Subly never does. • FULL EDITOR — combine clips, split, trim, and reorder on a scrub timeline with frame-accurate preview. • TRANSITIONS — dissolve, fade to black, slide, and zoom between clips. • B-ROLL & MUSIC — drop video overlays and a music bed with auto-ducking and per-clip volume. • AI NARRATOR — type a script, pick a voice, get a natural voiceover generated entirely on your iPhone. Offline, unlimited, no per-character fees. • CAPTIONS FROM YOUR SCRIPT — one script becomes both the narrator audio and word-synced captions. • ENGLISH-FIRST, 90+ LANGUAGES — on-device Whisper transcription. • PRO FORMATS — export SRT and VTT subtitle files. • VERTICAL REFRAME — turn landscape clips into 9:16. Built for Reels, Shorts, and TikTok creators who want their footage to stay theirs. Subly Pro: a yearly subscription, a weekly subscription with a 3-day free trial, or a one-time lifetime unlock. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel them in Settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://telegra.ph/Subly-Privacy-Policy-06-09

Screenshots

Zync AI3 screens
Subly4 screens

Verdict

The call

The clearest difference is in-app purchases: Zync AI at none against Subly's 3. Zync AI also leads on iOS requirement (15.1 vs 17.0). Subly's advantage is update cadence (every 4 days vs every 3 months). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Subly sells 3 in-app purchases, starting at $4.99 per 7 days. Zync AI asks for nothing beyond the download.

UpkeepUpdate frequency

Zync AI ships an update every 3 months, Subly every 4 days. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 7 level
Zync AI versus Subly: the parameters behind the verdict, then further details
ParameterZync AISubly
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 3 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size28 MB95 MB
Age rating4+4+
DeveloperZync AI IncNTSAUTOSIGA LLC

In-app purchases

None

Zync AI

No in-app purchases

3 purchases

Subly

Subscriptions2
  • Weekly$4.997 Days
  • Yearly7 Days trial$29.991 Year
One-time1
  • Subly Pro$39.99

Questions

Is Zync AI free?
Zync AI is free to download, with no in-app purchases.
Is Subly free?
Subly is free to download, with in-app purchases available.
Do Zync AI or Subly have ads?
Neither Zync AI nor Subly shows ads.
Which is updated more often, Zync AI or Subly?
Zync AI ships an update every 3 months, and Subly every 4 days. Most recently, Zync AI was updated on October 7, 2026 and Subly on October 8, 2026.

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