Sayso vs Sift Text Diff
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sayso
This app acts as a voice-powered keyboard, helping you articulate your thoughts with the right tone and language for any recipient. It offers modes for replying, dictating, and quick Q&A, integrating seamlessly with various messaging platforms.
- Voice-to-text with tone adjustment
- Multi-language reply support
- Dictation mode
- Inline Q&A assistant
- Customizable contacts and scenes
- Privacy-focused audio handling
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You know what you want to say. The words just don't always come out right. Sayso is a voice keyboard for the moments when "I'll just type it" isn't enough. Speak the messy, honest version of what you mean — Sayso writes the one they'll actually read well. The right tone. The right language. The right amount of warmth, snark, or formality for who's on the other side. Not translation. Not Grammarly. A mouthpiece — the friend who knows exactly how to say the thing you've been staring at the keyboard about. — THREE MODES, ONE KEYBOARD — REPLY MODE — Speak in any language; Sayso replies in the language they're already using. Set the tone (Warm, Direct, Flirty, Formal — or roll your own), the scene (work, dating, cross-culture, family), and even who you're talking to. DICTATE MODE — Pure transcription. No rewriting. For when you already know exactly what to say and just don't want to type it. Q&A MODE — A quick assistant inline. Ask, get a short answer, send it on. — BUILT FOR REAL CONVERSATIONS — WhatsApp · iMessage · Telegram · Slack · X DMs · Instagram · LINE · WeChat · Bumble · Hinge — anywhere a keyboard lives. — YOU IN, NOT YOU FILTERED OUT — Build your own contacts, scenes, and tones. Pick "Mom (Cantonese, traditional)" and your reply lands in Cantonese, with the warmth she expects. Pick "boss (formal English)" for the 11pm Slack message that needs to land right. Sayso adapts to who you're talking to — not the other way around. — PRIVACY THAT MATTERS — Audio is transcribed and discarded — we don't keep recordings on our servers. Generated text isn't used to train anyone's models. We don't track you across apps, sell your data, or read text from other apps you didn't paste in. — FREE & PRO — Free forever for 5 replies a day. All tones, all languages. Sayso Pro unlocks: - Unlimited daily replies - Premium quality (Claude Sonnet 4.6, opt-in per request) - 10× more contacts, scenes, and tones - Skills: drop your own knowledge into a reply (product specs, talking points, vocab lists) Subscription options: - Monthly: USD 24.99 - Yearly: USD 119.99 (includes a 7-day free trial) - Lifetime access: USD 249 Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscription anytime in iOS Settings → Apple ID → Subscriptions. Privacy Policy: https://usesayso.com/privacy Terms of Use: https://usesayso.com/terms Support: hello@usesayso.com — HOW IT FEELS — You stop staring at the cursor. You speak the thing in your head — not edited, not perfect — and Sayso hands you the version you'd send if you had three minutes and the right vocabulary. No filter, no autopilot. Just you, on your better day.
Sift Text Diff
Compare two versions of any text side-by-side to quickly identify added, removed, or modified lines. Features include inline viewing, word-level highlighting, and options to ignore whitespace or case. Save comparisons locally for easy recall.
- Side-by-side diff with color coding
- Inline diff view
- Word-level highlighting
- Ignore whitespace and case
- Local archive for saved comparisons
- Quick input swapping
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Sift is a fast, focused text diff tool for writers, editors, and developers. Paste two versions of any text — drafts, code, contracts, emails, JSON — and Sift highlights every added, removed, and modified line in a clean side-by-side view. No accounts, no clutter, no upload to the cloud. KEY FEATURES • Side-by-side diff with line numbers and clear rose/sage color coding • Inline diff view that shows +/- changes in a single column • Word-level highlighting on modified lines so subtle edits stand out • Ignore whitespace and ignore case toggles for noise-free comparisons • Save useful comparisons to the local archive and recall them in one tap • Quick swap between LEFT and RIGHT inputs • One-tap clipboard paste into either editor BUILT FOR REAL WORK Whether you are reviewing a contract redline, checking a code refactor, comparing JSON payloads, or auditing a copy edit, Sift keeps the differences in front of you and the noise out of the way. PRIVACY No accounts. No tracking. No network calls. All saved comparisons stay on your device.
Screenshots
Verdict
The clearest difference is rating: Sayso at 5.0 against Sift Text Diff's 2.0. Sift Text Diff's advantage is in-app purchases (none vs 3). On price, ratings volume, 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
Both are free to download. Sayso sells 3 in-app purchases, starting at $24.99 per month. Sift Text Diff asks for nothing beyond the download.
Sayso holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
| Parameter | Sayso | Sift Text Diff |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 2.0 (1 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 6 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | ZYGOTE.AI LIMITED | Linh Phan Nhat Khanh |
Customer experience
Sayso
Sift Text Diff
In-app purchases
Sayso
- Sayso Pro · Monthly$24.991 Month
- Sayso Pro · Yearly7 Days trial$119.991 Year
- Sayso Pro · Lifetime$249.00
Sift Text Diff
No in-app purchases









