Comparison

Scribelet vs Promptron

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

Head to head
About

Scribelet

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Most note apps just store what you write. Scribelet keeps working on them. While you focus on the next thought, it quietly fact-checks your notes against the web or custom sources, finds connections between ideas you forgot you had, and helps you write more clearly with an AI assistant that actually knows your notebook. Capture by voice or typing. Then trust what's there. FEATURES β€’ Background fact-checking. Scribelet scans your notes for claims, searches the web for evidence, and surfaces anything that doesn't hold up with cited sources and a clear diff. Accept, dismiss, or ignore. You stay in control. β€’ Voice notes that structure themselves. Speak naturally; Scribelet transcribes and organizes the result into clean headings, bullets, and action items. Templates supported. β€’ Snap it, don't type it. Attach photos, screenshots, and PDFs; Scribelet extracts the text so whiteboards, receipts, and documents become searchable notes. β€’ Ask your notes anything. An AI assistant that searches everything you've written, answers from what's actually there, cites the source notes, and can suggest edits or create new ones for you. β€’ Attachments are first-class. The AI assistant reads them, the fact-checker verifies them, and everything stays encrypted with your workspace keys. β€’ Connections you'd never find yourself. A semantic auto-linker compares the meaning of every note (not just keywords) and surfaces surprising links. A daily digest and weekly insights resurface forgotten work. β€’ Tasks where they belong. Add @due and @remind annotations inline; tasks live next to the notes that created them. BUILT FOR PRIVACY β€’ Every workspace is encrypted with its own keys. β€’ Voice recordings are processed in memory and never stored. β€’ Passkey and two-factor authentication. β€’ Optional: bring your own OpenAI, Anthropic, or Gemini API keys to route AI calls directly to your provider. WORKS EVERYWHERE Same workspace on iPhone, iPad, and the web at app.scribelet.app. Your notes follow you. PRICING Free forever: unlimited notes, full-text search, full encryption, and 10 AI verifications per month. Pro subscription with free trial; see in-app pricing. Unlimited AI features (chat, verification, weekly insights), background checks, voice notes, semantic search. Free trial available, up to 14 days on the yearly plan. Terms of Use (EULA): https://scribelet.app/terms Privacy Policy: https://scribelet.app/privacy

About

Promptron

Features
Read full description

Promptron is an on-device prompt workspace for turning rough intent into a structured request aligned to the Claude or Codex/ChatGPT product surface you choose. It combines bundled capability guidance, local organization, and reviewable evaluation signals. It does not promise objectively β€œbetter” prompts or guarantee AI output. WRITE FOR THE TARGET YOU CHOOSE β€’ Choose a Claude or Codex/ChatGPT target independently from the provider that writes the prompt. β€’ Use bundled, target-specific capability guidance. β€’ Review structured sections, compatibility checks, and transparent static or model-assisted evaluation signals. BRING YOUR OWN KEY β€’ Add an Anthropic or OpenAI API key in Settings. β€’ Requests go directly from your device to the matching provider. Promptron has no model-request proxy. β€’ If both providers are configured, an allowed fallback provider can still prepare the selected target prompt without changing its target guidance. β€’ Provider usage is billed separately under your Anthropic or OpenAI account. PRIVATE BY DESIGN β€’ Projects, conversations, generated prompts, scores, and local profiles stay on your device. β€’ Provider keys are stored separately in Keychain. β€’ Promptron contains no advertising, Promptron analytics, or cross-app tracking. β€’ Before a provider first receives content for the current local profile, Promptron explains what may be sent and asks for permission. Anthropic and OpenAI permissions are separate and revocable. WORK YOUR WAY β€’ Organize conversations in an on-device workspace. β€’ Add selected files, images, or web references when relevant. β€’ Use on-device dictation where the language and device support it. β€’ Copy results. Pro adds additional prompt forms, full bundled retrieval, multi-project organization, live evaluation, and HTML export. PROMPTRON PRO Promptron Pro Monthly is a one-month, auto-renewable subscription that unlocks app features. It does not include Anthropic or OpenAI usage. The localized price is shown before purchase. Payment is charged to your Apple Account at confirmation. The subscription renews automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel through your Apple Account. Restore Purchases is available in the Pro screen. AI output and evaluation signals may be inaccurate and are not professional advice. Verify results before relying on them. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://godricchoice-mel.github.io/promptron-support/privacy.html

Screenshots

Scribelet4 screens
Promptron2 screens

Verdict

The call

The clearest difference is update cadence: Scribelet at every 9 days against Promptron's every 3 weeks. Scribelet also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Scribelet sells 2 in-app purchases, starting at $9.99 per month and Promptron sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Scribelet ships an update every 9 days, Promptron every 3 weeks. The most recent releases landed on September 20, 2026 and September 9, 2026 respectively.

Scorecard2 real differences Β· 4 level
Scribelet versus Promptron: the parameters behind the verdict, then further details
ParameterScribeletPromptron
PriceFreeFree
Update frequencyEvery 9 days β€” betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPad, Mac β€” better
Requires iOS15.1 β€” better17.0
Further details β€” not scored
Size59 MB8 MB
Age rating12+4+
DeveloperScribeletYIMING WANG

In-app purchases

2 purchases

Scribelet

Subscriptions2
  • Premium14 Days trial$9.991 Month
  • Premium14 Days trial$99.991 Year
1 purchases

Promptron

Subscriptions1
  • Promptron Pro$4.991 Month

Questions

Is Scribelet free?
Scribelet is free to download, with in-app purchases available.
Is Promptron free?
Promptron is free to download, with in-app purchases available.
Do Scribelet or Promptron have ads?
Neither Scribelet nor Promptron shows ads.
Which is updated more often, Scribelet or Promptron?
Scribelet ships an update every 9 days, and Promptron every 3 weeks. Most recently, Scribelet was updated on September 20, 2026 and Promptron on September 9, 2026.

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