WhatLater vs Sema
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
WhatLater
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WhatLater β the AI-native, effortless save-anything library. Send WhatLater a link, a photo, a voice note, a document or just a thought β it's saved, automatically tagged, and waiting in a calm, organized library. It lives inside the messaging apps you already use every day, so there's no new habit to learn. β’ Save from anywhere β share to WhatLater from any app, or send it straight from your favorite chat apps. β’ Permanent copies β articles are captured as clean, readable copies that survive paywalls, edits and dead links. β’ Available offline β new saves download automatically, so your library opens on a plane. β’ Ask in plain words β "the receipt from last week", "that article about batteries" β and get the right item back. β’ Reminders that come find you β pick a card, pick a time; it arrives as a message and a notification. β’ Collect together β share a QR and friends add photos and notes into one collection. They add, they never delete. Free to use. Premium adds permanent article copies, media storage, natural-language search and reminders. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Sema
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Sema is private AI memory for your iPhone. Chat naturally, and Sema can save useful facts locally so later answers have more context. Ask about something you mentioned before, review what was saved, delete memories you do not want, or clear all local data from Settings. WHAT SEMA DOES - Private AI chat - Local conversation history - Automatic local memory for durable facts - Memory overview with source statements - Local memory search for follow-up questions - Permission-gated access for device sources such as Contacts, Calendar, Photos, Location, and Reminders - Apple Foundation Models first on supported devices - Optional on-device Gemma model download when Apple Foundation Models are unavailable - Optional public web search with Sema Pro PRIVATE BY DESIGN Sema has no account and no server-side copy of your chats or memories in this build. Conversations, memories, local search data, and permission history stay on your device. The developer cannot read your chats or memories. Sema may send aggregate product interaction analytics, such as app opens, onboarding completion, model availability, chat sends, response success or failure, and memory created or deleted. Analytics do not include chat text, memory text, names, contacts, calendar titles, locations, prompts, generated answers, or other private content. SEMA PRO (OPTIONAL SUBSCRIPTION) Sema is fully usable for free. An optional auto-renewable subscription, Sema Pro, adds public web search for questions local AI cannot know yet β $4.99/month or $24.99/year. Only sanitized public search queries leave the phone; saved memories and chats stay private in Free and Pro. Subscriptions auto-renew unless turned off at least 24 hours before the end of the current period. Payment is charged to your Apple ID. Manage or cancel anytime in your App Store account settings. IMPORTANT AI answers may be incomplete or incorrect. Verify important medical, legal, financial, safety, or time-sensitive information before relying on it. Use of Sema is governed by Apple's Standard Licensed Application End User License Agreement and Sema's Terms of Use: https://getglod.com/sema/terms
Screenshots
Verdict
The clearest difference is iOS requirement: WhatLater at 15.1 against Sema's 17.0. On price, update cadence, ads and in-app purchases 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
Both are free to download. WhatLater sells 2 in-app purchases, starting at $3.99 per month and Sema sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
WhatLater ships an update weekly, Sema every 10 days. Both last shipped on October 24, 2026.
| Parameter | WhatLater | Sema |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly β better | Every 10 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 β better | 17.0 |
| Further details β not scored | ||
| Size | 41 MB | 78 MB |
| Age rating | 4+ | 4+ |
| Developer | Deal Technology O.U. | Vilde Vevatne |
In-app purchases
WhatLater
- Premium β Monthly$3.991 Month
- Premium β Yearly$29.991 Year
Sema
- Sema Pro$4.991 Month
- Sema Pro$24.991 Year









