ShotSmarts vs E
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ShotSmarts
This app assists photographers by intelligently calculating essential camera parameters for various shooting scenarios. It offers tools for time-lapse, focal length conversion, depth of field, and flash calculations, making it suitable for both beginners and experienced professionals.
- Intelligent parameter assistant
- Full-scenario shooting support
- Time-lapse calculator
- Equivalent focal length conversion
- Depth of field calculation
- Safe shutter calculations
- Flash calculator
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ShotSmarts — intelligent parameter assistant exclusively for photographers. It serves as a fast shot-setup tool for seasoned shooters and an all-scene photography tutor for beginners. Compatible with all types of camera gear. Clean, ad-free interface, assembling multiple practical photography tools in one place. Supports shooting scenarios including night, motion, macro and more. Freely set ISO, and get professional parameters including aperture, shutter speed and exposure compensation intelligently. Built-in practical tools: Sun Tracking Timetable: View sunrise, sunset, morning glow, sunset glow, golden hour and blue hour on a single timeline to plan your best shooting time in advance. ND Filter Exposure Calculation: Quickly calculate exposure parameters when using an ND filter. Time-lapse Calculator: No manual formulas required. Easily calculate shots for light trails, cloudscapes, star trails and day-to-night time-lapse. Equivalent Focal Length Conversion: Precisely control viewing angle across different sensor formats for portrait, landscape and documentary photography. Depth of Field & Hyperfocal Distance Calculator: Adjust background blur freely for landscape, street documentary and commercial shooting. Safe Shutter Speed Calculator: Avoid blurry handheld shots for sharp images in low-light and dynamic scenes. Flash Calculator: Auto / manual dual modes, compatible with mainstream flashes. Quickly compute aperture, distance and flash brightness. 【User Testimonials】 ◆ National Geographic Contract Photographer: "Saves 40% of my parameter tuning time on location." ◆ Xiaohongshu Photography Blogger: "An essential exposure reference tool for beginners." ◆ Film Photographer: "Helps me quickly pick the right lens." --- If you have any needs or suggestions, please contact us: austinc@juzicy.com
E
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E-Mirror Pro+ It is a combination that contains Wi-Fi A specialized application for electronic rearview mirrors with functions and real-time recording. pass E-Mirror Pro+, You can connect the electronic rearview mirror for image preview, playback, viewing pictures and downloading videos, and also share your favorite videos or pictures on social networks. Main functions: Instant viewing: through E-Mirror Pro+ After connecting the electronic rearview mirror, you can instantly view the current recording content. Video playback: supports playback through E-Mirror Pro+ Preview, replay, and download the storage device of the electronic rearview mirror. Function setting: Support through E-Mirror Pro+ Set the electronic rearview mirror function. One click sharing: supports sharing favorite photos to social networks.
Screenshots
Verdict
The clearest difference is price: E at Free against ShotSmarts's $1.99. E also leads on iOS requirement (13 vs 15.6). On update cadence, ads, in-app purchases and device support 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
E is free to download; ShotSmarts costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ShotSmarts ships an update every 6 days, E weekly. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.
| Parameter | ShotSmarts | E |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 days — better | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 13 — better |
| Further details — not scored | ||
| Size | 2 MB | 37 MB |
| Age rating | 4+ | 17+ |
| Developer | 奥 陈 | CARMAX CO., LTD. |
In-app purchases
ShotSmarts
No in-app purchases
E
No in-app purchases









