DeeperAI vs Protexter
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
DeeperAI
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DeeperAI is an iPhone, iPad, and Mac app that helps you organize thoughts as a tree structure and explore them deeply with AI. Buy once, use on all platforms. [How It Works] Create a theme and break it down into sub-themes hierarchically. When you're stuck, AI suggests candidate sub-themes. Adding notes to your themes improves the quality of AI suggestions. [Antenna] Register topics you want to watch, and Claude periodically searches the web to summarize the latest information. The app auto-checks on launch and sleep-wake, and notifies you when new updates are found. [Chat] Open the chat while a theme is selected, and Claude responds with full awareness of that theme's context. You can also ask Claude how to use the app. Chat responses can be saved directly as sub-themes or attachments, letting you systematically build up knowledge within your tree. [More Features] - Tags and resource (assignee) management - Schedule and deadline management with Calendar integration - iCloud Drive sync โ share your data between iPhone, iPad, and Mac - Export and import data files (.dpai) [Pricing] The free plan allows up to 3 top-level themes and 3 levels of depth, with a lifetime AI allowance of 50,000 tokens. - **Premium** ($14.99/month): Unlimited themes and depth + 1M AI tokens/month included. No API key needed. - **Unlimited** ($39.99 one-time): Unlimited themes and depth. For users with their own Anthropic API key (pay-as-you-go, no token limit). Chat and Antenna features require a Premium subscription or your own Anthropic API key. End User License Agreement: https://ironasam43.github.io/ironasam43/legal/eula
Protexter
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Fix the text before you send it. Protexter is an AI keyboard that corrects typos, changes the tone and drafts replies right where you type: Messages, Mail, WhatsApp and most other apps. Tap Fix to clean up spelling and grammar. Tap Shorter or Expand to resize it. Tap Translate to switch a message between English and Brazilian Portuguese, or ask AI for another language. Tap Ask AI, say what you need, like "tell her I'm 10 minutes late", and get a reply ready to send. Free for 7 days or 100 AI actions, whichever comes first. No card needed. You read every word before you send it. WRITE BETTER, FASTER - Get reply suggestions from the thread context you choose to share - Rewrite text already in the active message field - Start from intent when you have not typed a draft yet - Make a reply shorter, warmer, firmer, playful, or professional - Preserve important facts and avoid topics you do not want mentioned - Turn an exact TikTok post idea into title, caption, hashtag, and eligible mention options - Run Send Check before you use a draft YOUR VOICE FOR EACH CONVERSATION Choose from categorized personalities for everyday, socials, business, family, pleasure, literary, screen-inspired, and historical communication. Link a voice to a saved contact or number, or create a custom personality in the app or keyboard. Protexter keeps saved profiles separate so one conversation does not shape another. CONTEXT WITHOUT THE BUSYWORK Paste a thread, copy a conversation screenshot, or use text made available to the active keyboard. Screenshot text recognition runs on device. When context is enabled, Protexter can suggest what to say next even before you type a reply. BUILT FOR THE KEYBOARD - Tap Suggest for context-aware reply options - Tap Rewrite to improve selected or typed text - Choose a personality without leaving the keyboard - Paste a copied screenshot into contact memory - Insert an approved draft with one tap - Switch back to Apple Keyboard at any time YOU STAY IN CONTROL Protexter does not scrape chats or silently read conversations. Third-party AI processing, conversation context, and automatic linked-contact memory are separate controls that are off by default. Sensitive details in shared conversation context can be redacted before an AI request, and saved context can be cleared at any time. Whether you are confirming plans, following up at work, setting a boundary, fixing an awkward draft, or keeping a conversation moving, Protexter helps you send a message that sounds natural and true to what you meant. SUBSCRIPTION Protexter Pro is an auto-renewable subscription. Monthly and annual options are available, and the price is shown in the app before you confirm. Payment is charged to your Apple ID at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. You can manage or cancel your subscription in your Apple ID account settings after purchase. New installs can try Protexter free for 7 days or 100 AI actions, whichever comes first, with no card needed. That free week is not an App Store trial and never turns into a charge by itself. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Protexter Service Terms: https://protexter.vercel.app/terms Privacy Policy: https://protexter.vercel.app/privacy-policy
Screenshots
Verdict
The clearest difference is in-app purchases: Protexter at none against DeeperAI's 3. Protexter also leads on update cadence (every 2 days vs weekly). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. DeeperAI sells 3 in-app purchases, starting at $14.99 per month. Protexter asks for nothing beyond the download.
DeeperAI ships an update weekly, Protexter every 2 days. Both last shipped on November 5, 2026.
| Parameter | DeeperAI | Protexter |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Every 2 days โ better |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad, Mac โ better | iPhone, iPad |
| Requires iOS | 17.0 | 16.4 โ better |
| Further details โ not scored | ||
| Size | 12 MB | 57 MB |
| Age rating | 4+ | 9+ |
| Developer | Masanori Kobayashi | Ifeanyi Munonye |
In-app purchases
DeeperAI
- DeeperAI Monthly$14.991 Month
- 500K Token Pack$9.99
- DeeperAI Unlimited$39.99
Protexter
No in-app purchases









