Comparison

Instant HDR vs JSlate

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

Head to head
About

Instant HDR

Features
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Instant HDR converts ordinary photos into real HDR JPEGs tuned for Instagram posting. Most HDR photo apps push a stronger effect before upload. But Instagram applies its own HDR processing, which can visibly alter the image after posting. Instant HDR is built around that behavior. Instead of chasing an exaggerated pre-upload preview, Instant HDR is tuned to preserve your photo’s intended look after Instagram upload, while still producing a bold HDR effect once the post goes live. Features: β€’ One-tap HDR conversion β€’ Tuned specifically for Instagram posting β€’ Helps keep your SDR image stable after upload β€’ Local on-device processing β€’ Saves the converted HDR JPEG to your photo library β€’ Optional subscription removes the export watermark Instant HDR is made for creators who want reliable HDR output β€” not a preview that falls apart after posting. Terms of Use: https://hdrguru.vercel.app/terms Privacy Policy: https://hdrguru.vercel.app/privacy

About

JSlate

Features
Read full description

[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

Screenshots

Instant HDR4 screens
JSlate3 screens

Verdict

The call

The clearest difference is in-app purchases: JSlate at none against Instant HDR's 1. JSlate also leads on update cadence (every 2 days vs every 2 weeks). Instant HDR's advantage is iOS requirement (16.0 vs 18.0). On price, ads 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. Instant HDR sells 1 in-app purchase, starting at $2.99 per month. JSlate asks for nothing beyond the download.

UpkeepUpdate frequency

Instant HDR ships an update every 2 weeks, JSlate every 2 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard3 real differences Β· 3 level
Instant HDR versus JSlate: the parameters behind the verdict, then further details
ParameterInstant HDRJSlate
PriceFreeFree
Update frequencyEvery 2 weeksEvery 2 days β€” better
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhoneiPhone
Requires iOS16.0 β€” better18.0
Further details β€” not scored
Size7 MB5 MB
Age rating4+4+
DeveloperAlexander ChaldryanKEISUKE TONE

In-app purchases

1 purchases

Instant HDR

Subscriptions1
  • Instant HDR Premium$2.991 Month
None

JSlate

No in-app purchases

Questions

Is Instant HDR free?
Instant HDR is free to download, with in-app purchases available.
Is JSlate free?
JSlate is free to download, with no in-app purchases.
Do Instant HDR or JSlate have ads?
Neither Instant HDR nor JSlate shows ads.
Which is updated more often, Instant HDR or JSlate?
Instant HDR ships an update every 2 weeks, and JSlate every 2 days. Most recently, Instant HDR was updated on October 24, 2026 and JSlate on October 25, 2026.

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