Write a letter vs Pumli
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
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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/
Pumli
This AI companion runs locally on your device, offering private conversations and research capabilities. Customize your assistant, connect to various tools and services, and generate content like emails and images.
- Local AI models for offline use
- Private conversation history
- Customizable assistant instructions
- Integrations with Notion, GitHub, etc.
- Web search capabilities
- Email drafting
- Image and video generation
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A world of your own. Meet Pumli, your private AI companion for everyday questions, thoughtful research and a little imagination. Start with a model on your phone. Add useful connections when you choose. Make the assistant feel like yours. BIG AI, RIGHT HERE Download a compatible model and chat on your device, even offline. Explore MiniCPM-V 4.7 35B-A3B on compatible hardware: 35 billion total parameters, with about 3 billion active per token. Prefer something smaller? Choose a compact model that fits your phone, storage and task. A WORLD OF LOCAL MODELS Discover compatible GGUF models through Hugging Face search, alongside curated choices with Hugging Face and ModelScope download sources. Manage downloads, see the models already on your device and remove those you no longer need. Model compatibility and performance vary; not every model file can run on every device. YOUR PRIVATE LITTLE SPACE Local inference runs on your device. Keep conversation history close, start a fresh chat, and review or delete what you save. Give your assistant a name, adjust its instructions, and view, edit or remove its locally saved memories. Local conversations do not require a general Pumli cloud chat account. CONNECT BY CHOICE Bring notes, code, documentation and search into the conversation with supported connections such as Notion, GitHub, Context7, Microsoft Learn and remote MCP servers. Search the web through the services you enable. Connectors are optional: choose access, review requests and control your tool-approval settings. A HELPING HAND ON IPHONE Use supported phone actions for calls, Messages, Contacts, Calendar, Reminders, Maps, Health and Fitness. These features require the relevant permissions and your choice to enable them. Health and Fitness tools are read-only and designed to show results on your device. Phone and messaging actions use the appropriate system interface. FOLLOW YOUR CURIOSITY Research mode explores bigger questions across multiple steps using enabled tools. Choose a depth, follow the progress and open the sources behind the answer. Use it to compare ideas, investigate a topic or bring scattered information together. AI research still needs your judgement: check important facts and source material. FIND THE WORDS Ask for an email draft, then review and edit the recipient, subject and message. Open the draft in Mail, choose your sending account and send when you are ready. Pumli 3.0 uses this Mail handoff; direct Gmail and Outlook account connectors are not part of this release. MAKE SOMETHING NEW Create images with optional online providers, including Gemini, or turn a prompt and supported reference media into a Seedance video. Preview and save supported creations to your device. Use your own eligible provider account or API key; availability, safety rules, quotas and provider fees apply. SPEAK YOUR WAY Use local dictation after downloading a compatible speech model, or choose optional online realtime voice. Move between writing, speaking, researching and creating in one personal space. KNOW WHAT STAYS LOCAL Online AI, connected search, remote tools, realtime voice and cloud generation require internet access and send the information needed for the task to your chosen provider. Some services require separate accounts, keys or usage fees. Pumli does not promise that online providers retain no data. Large models need substantial storage and compatible hardware. Speed, context and available features vary by device and region. AI can make mistakes; review important answers and external actions before relying on them. Pumli is an independent app. Model and service names belong to their respective owners.
Screenshots
Verdict
The clearest difference is review sentiment: Pumli at 70% against Write a letter's 27%. Pumli also leads on rating (4.7 vs 4.0) and 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. Write a letter sells 3 in-app purchases, starting at $2.99 per month. Pumli asks for nothing beyond the download.
Pumli holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 29 and 21 respectively. Written reviews point the same way: 27% of Write a letter's written reviews are positive against 70% of Pumli's.
Write a letter ships an update every 3 months, Pumli every 2 weeks. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | Write a letter | Pumli |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (29 ratings) | 4.7 (21 ratings) — better |
| Positive reviews | 27.4% of reviews | 70.0% of reviews — better |
| Number of ratings | 29 — better | 21 |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 40 MB | 173 MB |
| Age rating | 4+ | 17+ |
| Developer | Jan-Hendrik Damerau | ESOTECH Ltd |
Customer experience
Write a letter
Pumli
In-app purchases
Write a letter
- Monthly Premium$2.991 Month
- Annual Premium$22.991 Year
- Lifetime Premium$39.99
Pumli
No in-app purchases









