JSlate vs Japaven
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
JSlate
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[Elevate Your Workflow. High-Precision Timer for the AI Era.] JSlate is a high-precision timer and logging tool built for professional video production - from live broadcast to film and commercial sets. Featuring a minimalist "equipment-grade" UI, it provides advanced logging capabilities optimized for next-generation AI analysis. [Key Features] (1) TIMER Mode: Precise Progress Management High-Precision Timecode: Professional digital font for maximum on-set visibility. Flexible Time Settings: Configure start time by the second and countdown modes. Independent Tracking: Measure time independently from the real-time clock - ideal for broadcast segments. Industry Standards: Supports multiple frame rates (24/30/60fps) and 00/01/10H display modes. (2) SHOT Mode: Next-Gen Field Logging Digital Slate: Large, intuitive Scene/Cut/Take display for fast identification. One-Tap Logging: Instantly record every take with a single tap. AI Workflow Integration: Manage all take logs in a comprehensive list for seamless export to AI analysis or post-production. Smart Auto-Reset: Automatic reset function linked to the start of recording (REC). [Built on Professional Trust: Three Zeros] Confidentiality and speed are our priorities. Zero Setup: No account creation or login. Ready to use immediately after installation. Zero Data Leaks: 100% local design. No server communication ensures your sensitive data stays on your device. *Note: Location data used for local logging only. Zero Cost: Completely free. No ads or in-app purchases to interrupt your professional work. [Target Users] Broadcast Directors & Timekeepers Cinematographers & Script Supervisors Independent Creators pursuing professional quality Editors building AI-driven post-production workflows
Japaven
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Japaven brings a film darkroom to your iPhone and iPad. Develop digital photographs through a simulation of film exposure, development, printing and scanning, using measured film and paper profiles. EXPLORE FILM AND PAPER Choose from 22 film profiles and nine printing-paper profiles. Explore colour negative, slide and black-and-white looks, and see how the material changes your photograph. SHAPE YOUR PHOTOGRAPH Start in Look with film, paper and the Character dial. Refine exposure, contrast, highlights, shadows, warmth, tint, grain and sharpening in Adjust. Explore print exposure, colour filtration, softness and halation in the Darkroom, or open Advanced for detailed simulation controls. Some print controls apply only to negative films. DEVELOP AND SHARE Import from Photos or open image files from Files. Export at 1080, 2048 or 4096 pixels, or at your photograph's full resolution. Save to Photos or share through the system share sheet. Your original stays unchanged. ON-DEVICE PROCESSING Your photographs are processed on your device and are never uploaded by Japaven. Photo editing works offline and requires no sign-up. FREE FEATURES Start with Kodak Gold 200, Fujifilm C200 and Kodak Double-X, each with its default print material. Use Look, Adjust and Character, with unlimited photo exports up to full resolution. Preview premium films, papers and controls before subscribing. JAPAVEN PRO An optional monthly or yearly auto-renewable subscription unlocks exports using the full film and paper collection, independent Darkroom adjustments and Advanced controls. The price for your region is displayed in the app before purchase. Payment is charged to your Apple Account. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel it in your Apple Account subscription settings. Restore purchases through your Apple Account. You may optionally link an e-mail address to restore Pro on another device; the linked address can be removed in the app. Purchases and optional e-mail restoration require an internet connection. Film and paper names are their manufacturers' trademarks and identify the materials represented by the profiles. Japaven is not affiliated with or endorsed by those manufacturers. Privacy Policy: https://japaven.com/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: JSlate at none against Japaven's 1. On price, update cadence, ads and device support 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. Japaven sells 1 in-app purchase, starting at $1.99 per month. JSlate asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 days. Both last shipped on October 25, 2026.
| Parameter | JSlate | Japaven |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days | Every 2 days |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone | iPhone, iPad โ better |
| Requires iOS | 18.0 | 18.0 |
| Further details โ not scored | ||
| Size | 5 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | KEISUKE TONE | Gor Davtyan |
In-app purchases
JSlate
No in-app purchases
Japaven
- Japaven Pro$1.991 Month









