# Keepstone: Time Capsule Diary — Seal memories for later > Seal memories for later (iPhone/iPad app by Pablo Silva.) - Source: https://appshunter.io/ios/app/keepstone-time-capsule-diary/id6759112157 (this page in markdown: same URL + `.md`) - Developer: [Pablo Silva](https://appshunter.io/developer/1876877015) - Category: Lifestyle, Productivity - Price: Free with in-app purchases (on sale, was $0.99) - Age rating: 4+ - Requires: iOS 15.0 · 18 MB - Languages: American English, French (France), Japanese, European Portuguese, Chinese (Simplified, China), European Spanish - Released: 2026-02-17 - Data updated: 2026-08-11 - User reviews in markdown: https://appshunter.io/ios/app/keepstone-time-capsule-diary/id6759112157/reviews.md ## What is Keepstone? Keepstone is a private journal for memories you want to preserve, seal, and rediscover later. Write a memory, add photos or voice notes, lock it until a future date, or create a letter to your future self. Your journal stays local on your device: no account, no cloud sync, no social feed. WRITE Capture daily thoughts, meaningful moments, photos, and voice notes in a calm writing space. SEAL Lock memories until a future date. Create personal time capsules or letters to your future self. ORGANIZE Use tags, search, themes, typography, and journal statistics to shape your archive over time. EXPORT Create password-protected .kstone files, encrypted backups, and PDF exports for unlocked memories. PRIVATE BY DESIGN Your data stays local on your device. Keepstone does not require an account to write, seal, import, export, or read your memories. SUPPORTER Keepstone includes an optional one-time Supporter upgrade for premium themes, typography, full journal statistics, and PDF export. Keepstone is built for memory, privacy, and time. ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Keepstone Supporter | $0.99 | one-time | ## Version history (last 5 releases) ### 1.7.10 — 2026-08-07 Keepstone 1.7.10 makes image memories easier to create and improves localization around upload flows. You can now select multiple images at once when adding photos to a memory, instead of adding them one by one. Each memory supports up to 10 images, keeping entries comfortable to open, edit, and export. Image-upload alerts now use the selected app language, and iOS permission prompts have localized text for supported languages. The app also better propagates your selected language to web and native picker flows. ### 1.7.9 — 2026-06-05 Shared .kstone memories are now easier to receive. When someone sends you a Keepstone file, iOS can open it directly in Keepstone and take you straight to the shared memory import flow. Memories remain encrypted, password-protected, and local-first, with no accounts, cloud storage, or servers. This update also improves native .kstone sharing and keeps full backups separated from shared memory imports to help avoid accidental restores. ### 1.7.7 — 2026-05-29 Keepstone 1.7.7 refines the experience around privacy, speed, and appearance. Amethyst now follows your system appearance automatically: Amethyst Light in Light Mode, and the classic dark Amethyst experience in Dark Mode. Every free theme now includes a light version, and Moonstone joins as a new premium theme. Startup is faster for journals with audio memories by avoiding unnecessary audio loading at launch. Vault alerts make upcoming sealed-memory unlocks easier to notice, while encrypted .kstone sharing, sealed-memory titles, and read-only imported memories remain intact. ### 1.7.6 — 2026-05-21 Keepstone now feels more native on every device. The default Amethyst theme automatically follows your system appearance: Light Mode uses Amethyst Light, while Dark Mode keeps the classic dark Amethyst experience. This update also adds light versions of every free theme, introduces Moonstone as a new premium theme, and improves startup performance by reducing unnecessary work when loading large memory libraries. We also kept the vault improvements from the previous update: sealed memories remain private, upcoming unlocks are easier to notice, and encrypted sharing stays focused on preserving memory integrity. ### 1.7.5 — 2026-05-05 Keepstone now feels more native on every device. The default Amethyst theme automatically follows your system appearance: Light Mode uses Amethyst Light, while Dark Mode keeps the classic dark Amethyst experience. This update also adds light versions of every free theme, introduces Moonstone as a new premium theme, and improves startup performance by reducing unnecessary work when loading large memory libraries. We also kept the vault improvements from the previous update: sealed memories remain private, upcoming unlocks are easier to notice, and encrypted sharing stays focused on preserving memory integrity. ## More apps by Pablo Silva - [Rituar: Minimal Habit Tracker](https://appshunter.io/ios/app/rituar-minimal-habit-tracker/id6759100612) - [Vanta: Memory Art Journal](https://appshunter.io/ios/app/vanta-memory-art-journal/id6759453334) All apps by Pablo Silva: https://appshunter.io/developer/1876877015 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-11.*