Monitor+ vs Star Exposure Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Monitor+
Transform your phone into a professional camera monitor with live view and remote control capabilities. Access camera content, utilize advanced assist functions, and even record live feeds. A Pro version unlocks even more powerful features for enhanced filmmaking.
- Live View
- Remote Camera Control
- UVC/Capture Card Support
- Camera Content Access
- Assist Functions (False Color, Zebra, etc.)
- Focus Pulling
- Apple Watch Extension
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Currently only Sony a7R V, a7R IV, a9 III, a9 II, a7C, a7C II, a7CR, a7S III, a1, FX3, FX30, ZV-1, ZV-E10, ZV-E1, a7 IV and newer models are supported for wireless connection (Wi-Fi). When use wired connection (USB), previous camera models such as A7 III are also supported, detailed compatible table please refer to the website. Monitor+ turns your phone into a professional camera monitor instantly! Key Features: - Live View - Remote Control (Shutter Speed, Iris, ISO, WB...) - UVC/Capture Card support for iPadOS - Camera content access* - OSD image display* - Touch AF and display focus point* - Record and playback live view feeds* - Assist Functions* (False Color, Zebra, Waveform, Histogram, Vectorscope, Guide, Focus Peaking, Desqueeze, LUTs...) - Chroma Keying and Overlay* - Focus Pulling* - Apple Watch Extension* - Screen Lock* * Available on Pro version Disclaimer: Monitor+ is not affiliated with Sony Corporation in any way and is not a Sony product. “SONY”, “Sony” are trademarks of Sony Corporation.
Star Exposure Calculator
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Star Exposure Calculator is an app that helps you calculate the right exposure settings for pin-sharp stars in astrophotography. Features: • Calculate star exposure via simple or complete NPF rule for pin-sharp stars • Calculate star exposure via 500 rule • Calculate focal ratio of your telescope • Telescope magnification calculator • Maximum telescope magnification calculator • Telescope true field of view calculator We constantly update the app to provide more features that users are looking for, so expect even more with future updates.
Screenshots
Verdict
The clearest difference is in-app purchases: Star Exposure Calculator at none against Monitor+'s 1. Star Exposure Calculator also leads on update cadence (every 2 weeks vs monthly) and iOS requirement (13.0 vs 15.0). Monitor+'s advantage is ads (none vs shown) and device support (4 vs 2). On price there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Monitor+ sells 1 one-off in-app purchase. Star Exposure Calculator asks for nothing beyond the download.
Monitor+ ships an update monthly, Star Exposure Calculator every 2 weeks. The most recent releases landed on November 11, 2026 and November 8, 2026 respectively.
| Parameter | Monitor+ | Star Exposure Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (281 ratings) — better | — |
| Positive reviews | 45.2% of reviews | — |
| Number of ratings | 281 — better | — |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 49 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | HON IN UN | Dejan Boras |
Bugs and requests
Monitor+
Reported bugs
6 issues- Incompatible with newer camera firmware updates
- Inability to delete photos from the app
- Inconsistent touch focus behavior
- Incorrect exposure and color representation
- Zebra levels not matching camera
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- Inability to set zebra levels below 50%
Requested features
13 requests- Support for more Sony camera models (A7III, A6400, A6600, etc.)
- Wired connection option for iOS
- Audio level monitoring
- Customizable frame guides and overlays
- Onion skin feature
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- Exposure meter display
- Ability to apply LUT during playback
- Vertical mode support for social media
- Pinch-to-zoom on preview image
- Half-press shutter button functionality
- Automatic camera level display
- Timecode support
- Ability to record to external storage
Star Exposure Calculator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Monitor+
- Pro Upgrade$18.99
Star Exposure Calculator
No in-app purchases
Questions
Is Monitor+ free?
Is Star Exposure Calculator free?
Do Monitor+ or Star Exposure Calculator have ads?
Which is updated more often, Monitor+ or Star Exposure Calculator?
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