Slope Calc vs TalonView
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Slope Calc
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“Why is the size of Calculator each buttons same? “ “How order is the priority of Calculator button? “ “What type Calculator is designed ,According to this priority? “ From those point,I redesign Calculator. Calculator is for Calculation.Not for inputting number. Consequently, the most important button is NOT number buttons. The most important button is 4 arithmetical operation buttons. I design those 4 arithmetical operation button is bigger than 10 number buttons. I put those 4 buttons around number buttons(relative position). And if you incline your iPhone to the direction of top and bottom right and left , you can input 4 arithmetical operation. ・Future function additional plan Equal sign input by the gesture
TalonView
This app connects field teams with subject matter experts through live video streaming and two-way communication. It enables real-time collaboration, documentation, and remote control to enhance efficiency and quality.
- Live video streaming
- Two-way communication
- HD video recording
- Data-tagged photos
- Remote device control
- Video and photo annotations
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Talonview™ offers integrated technology, efficiency, interactivity and realtime actionable data, all delivered at the time of need. Talon Aerolytics’ live camera streaming application helps connect subject matter experts (SME) with field teams to increase efficiency and quality, through interactive, realtime communication and documentation. Talonview™ offers live video streaming, two way communication, HD video recording, data tagged high resolution photos, multiple session participants, and SME remote device control from anywhere in the world. Talonview™ allows participants to make annotations and voice recordings on live video and photos. At the completion of each live session, all data is edited and organized on our CCMS for access within 24-hours.
Screenshots
Verdict
The clearest difference is price: TalonView at Free against Slope Calc's $0.99. TalonView also leads on update cadence (every 2 weeks vs every 21 months). Slope Calc's advantage is iOS requirement (7.0 vs 15.1). On 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
TalonView is free to download; Slope Calc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Slope Calc ships an update every 21 months, TalonView every 2 weeks. The most recent releases landed on November 10, 2026 and November 2, 2026 respectively.
| Parameter | Slope Calc | TalonView |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 1.2 (49 ratings) — better |
| Positive reviews | — | 6.7% of reviews |
| Number of ratings | — | 49 — better |
| Update frequency | Every 21 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 1 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | Yosuke Kurashima | NxTec |
Bugs and requests
Slope Calc
Not enough reviews yet to summarise bugs or requests.
TalonView
Reported bugs
26 issues- App doesn't load and lags
- Photos don't upload when they say they did
- Can't see which photos are input for each form
- Can only upload photos from Main Gallery
- Takes one picture at a time and waits for upload
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- Saves every picture to camera roll
- Unable to queue photos to sort and choose for upload
- Videos take all night to upload
- New page is redundant
- App has stopped working after last update
- Failing to upload, generally crashing
- Cannot remove uploaded photos
- Viewfinder shows certain framing, but captures areas intentionally framed out
- Constant crashing and freezing of the app
- Can't login
- Does not save
- In-app camera is zoomed in, cannot use side buttons to snap photo
- Process after upload to check/fix mistakes is a nightmare
- Can't open notes on rejected pictures
- Inconsistency of photos reaching review personnel
- Frequently requires re-sign in and doesn't load 'Tenants'
- App has bugs, sometimes uploads correctly, sometimes not
- App doesn't open and stays stuck in loading screen
- Cannot save selection
- Crashes when trying to upload photos
- Black screen during recording
Requested features
11 requests- Revert sort order to Descending (Newest First)
- Lock new media button on bottom of screen
- Restore previous functionality to take/upload photos directly under each section
- Allow taking photos while uploading in background
- Alphabetically list clients
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- Allow typing in a box to search clients
- Desktop version
- Focus button for camera
- Ability to make thumbnail pictures full-size
- Improve camera for better quality pictures
- Add history capability to check missed/filled days
In-app purchases
Slope Calc
No in-app purchases
TalonView
No in-app purchases
