Write a letter vs IsiSafe
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Write a letter
Create professional letters quickly and easily. Save them as PDFs for emailing, printing, or sharing. Customize your letters with formatting, templates, and fonts to match your style.
- Professional letter creation
- PDF export
- Email, print, and share options
- Customizable templates
- Text formatting
- Signature integration
- Sender address management
Read full descriptionHide full description
With this app you can write professional letters in just a few minutes. Your letter is saved as a PDF and can be sent by email, printed, or shared via AirDrop at any time. With your signature if you wish. It's that simple: create a sender, enter the recipient, write the letter, done. Design your letters entirely to your own style. The editor supports text formatting such as Bold, Underline and more, so you can highlight important content precisely. Choose between a classic and modern template or create your own letter template with the template generator. Three built-in fonts as well as all fonts installed on your device are available for display. A4 and US Letter are supported. You can save any number of sender addresses, for example private and business, and simply select the right one when writing. Feedback and suggestions for improvement are always welcome. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
IsiSafe
Read full descriptionHide full description
IsiSafe is your private vault for everything that truly needs protection: passwords, logins, bank and account data, confidential notes, and more. Neatly organized, lightning-fast to find – and secured through modern on-device encryption. Why IsiSafe? • Instantly clear: Bank, login, or note – all in tidy type blocks. • Custom organization: Name sections freely and sort them via drag & drop. • Work fast: Double-tap to edit, swipe to favorite or delete. • Secure unlock: Optional Face ID / Touch ID. • Local encryption: Exports can be end-to-end encrypted if desired. • Offline & private: No account required, no cloud dependency. Highlights • Smart lists: “All” and “Favorites” automatically sorted by type (Bank → Login → Note). • Custom sections: Name areas freely (e.g. “Insurance”, “Family”, “Work”) and sort manually. • Quick copy: One tap copies values (with IBAN/phone format clean-up). • Pro mode: For power users – delete without confirmation if enabled. • Export/Import: Secure backups as JSON; optionally encrypted (.json.enc). • Share/Print: Export selected entries as plain text – ideal for emergency folders. • No subscription: One-time purchase, lifetime use. Security & Privacy • All sensitive data is stored locally. • Optional biometric lock (Face ID / Touch ID). • Exports can be strongly encrypted (AES-GCM). • No hidden telemetry – you stay in control. Pricing • 10-day free trial. • Then full version via one-time in-app purchase. • Purchases can be restored anytime. Support Questions or feedback? Open the user manual in-app under Settings → Help.
Screenshots
Verdict
The clearest difference is price: Write a letter at Free against IsiSafe's $1.99. IsiSafe's advantage is in-app purchases (none vs 3) and update cadence (every 4 days vs every 3 months). On 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
Write a letter is free to download; IsiSafe costs $1.99 up front. Write a letter sells 3 in-app purchases, starting at $2.99 per month. IsiSafe asks for nothing beyond the download.
Write a letter ships an update every 3 months, IsiSafe every 4 days. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.
| Parameter | Write a letter | IsiSafe |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 3.6 (19 ratings) — better | — |
| Positive reviews | 26.4% of reviews | — |
| Number of ratings | 19 — better | — |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 26.0 | 17.6 — better |
| Further details — not scored | ||
| Size | 40 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Jan-Hendrik Damerau | Klaus Gutsch |
In-app purchases
Write a letter
- Monthly Premium$2.991 Month
- Annual Premium$22.991 Year
- Lifetime Premium$39.99
IsiSafe
No in-app purchases









