Comparison

FIT vs Photo Inventory Retinelle

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

Head to head
About

FIT

Features
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This is the FIT-Basic version, free of charge and free of advertisements. You will find a pro version called FIT-System in the App Store. The basic version provides all functionality but restricts the number of event categories to 12. You will experience this as sufficient for a versatile range of use cases. And may as appetizer for the unrestricted pro version. The author of the FIT-App is a scientist in Ergonomics and Human Factors Engineering. Contacting him will help you to understand and use the potentials of the FIT technique and to innovate and improve your field study: juergen.held@hfg-gmuend.de In analysis of human or animal behavior you often have to record diverse activities. For example in field studies of Human Factors, Ergonomics, Psychology or in Biology you have to observe activities like tasks, interactions, states, postures, positions, locations, motions or any other observational events. For documentation of your observations you need to record or store them with a time stamp. Your objective is a list or table of the observed events with their related time stamp of occurrence or observation. Therefor you may use traditional time study Apps of key-stroke or pre-defined button recording. But very probably you will experience a set of problems: - You can not design your own user interface of recording. - Instead you have to use a restricted predefined set of buttons or icons. - You can not adapt the user interface to the context and your mental representations. - You have to declare and fix the meaning of your buttons before recording starts. - Memorization or learning of the fix set of buttons limits your event categories. - You can not easily change or adapt your interface during recording. The FIT (Flexible Interface Technique) App is different because: (1) It allows you to design a recording interface graphically or pictorially. In using or designing graphic symbols, text or simply by using photographs of the observation setting you can reach a better performance in recording in terms of faster reaction time, less erroneous input and the management of a much more higher amount of event categories. (2) Using the FIT-App you not declare the meaning of your interface in advance. There is no such thing like first defining everything of your study and then realize during pilot observations to change and redefine it. Instead you can start event recording even with a blank screen as your interface. The signature or meaning of your input in the FIT-App is done afterwards. It is a kind of reverse notation where you can focus on the observational character of the data and not have to narrow your capacities because of enforced occupation with predefined operators of the App. In a field study of human or animal behavior you will often be confronted with the need of a relatively fine grain of analysis. Thus managing a relatively high number of activities and states or locations is often the use case. To solve this with traditional event recording Apps is problematic because of the given interface you have to accept. The result of the FIT-App is a table of event data, i.e. the name or signature of the event and the time stamp in a table form. It can export to spreadsheet software as Numbers or Excel, or as a comma separated file (CSV) for use in statistical packages as R or SPSS. Your work with the FIT-App is supported by a iBook tutorial free of charge (see support link on this page). Additionally it provides you with recording examples and literature links. The FIT-App is just a tool and free of in-App registrations or advertisements. Using the FIT-App you will stay "in touch" with the history of Apple Inc. as the FIT software derives from a first App written in the nineties for the touch screen of the "Apple Newton Message Pad" computer.

About

Photo Inventory Retinelle

Easily create a visual inventory of your belongings by taking photos and organizing them into projects. Share polished PDF or ZIP files for insurance, moving, or personal cataloging. Works offline with no ads or mandatory accounts.

Highlights
  • Multiple photos per item
  • Custom titles and descriptions
  • Projects for organization
  • PDF and ZIP export
  • Automatic backups
  • Offline functionality
  • Spreadsheet export (XLSX)
Features
Read full description

Retinelle turns photos of your belongings into a clear home and work inventory you can share in seconds. Snap each item, group them into projects (rooms, collections, jobs), then export a polished PDF or ZIP file to share with movers, insurers, family or colleagues. No account, no ads, no fuss. Use Retinelle to: • Document furniture and home contents for insurance or moving • Catalog collections (costumes, seeds, tools, books, gear…) • Track what you lend out and to whom • Share a visual inventory with family, teams or clients Key features: • Multiple photos per item (front/back, details, labels) • Custom titles and descriptions • Custom fields with sorting and filtering • Projects for rooms, collections or jobs – with manual project ordering • Grid or list view of items, with sorting options • Export to PDF with configurable layout, image size and order • Export/import projects and selective export to ZIP backups • Automatic backups to keep your inventories safe • Retinelle Plus (R+): spreadsheet export (XLSX) and batch actions • Optional backup of camera photos to your photo library • Universal app for iPhone, iPad and Mac Privacy & pricing: • Works offline, no mandatory account • Data is stored on your device • No advertising - Privacy policy : https://www.retinelle.app/privacy-policy/ - Terms of use : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Photo Inventory Retinelle4 screens

Verdict

The call

The clearest difference is in-app purchases: FIT at none against Photo Inventory Retinelle's 2. FIT also leads on iOS requirement (12.0 vs 18.0). On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Photo Inventory Retinelle sells 2 in-app purchases, starting at $5.99 per month. FIT asks for nothing beyond the download.

UpkeepUpdate frequency

FIT ships an update fortnightly, Photo Inventory Retinelle every 2 weeks. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

Scorecard2 real differences · 8 level
FIT versus Photo Inventory Retinelle: the parameters behind the verdict, then further details
ParameterFITPhoto Inventory Retinelle
PriceFreeFree
Rating—4.9 (312 ratings) — better
Positive reviews—94.9% of reviews
Number of ratings—312 — better
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPadiPhone, iPad — better
Requires iOS12.0 — better18.0
Further details — not scored
Size9 MB60 MB
Age rating4+4+
DeveloperJuergen HeldVincent Germain

In-app purchases

None

FIT

No in-app purchases

2 purchases

Photo Inventory Retinelle

Subscriptions2
  • Retinelle Plus Monthly$5.991 Month
  • Retinelle Plus Yearly7 Days trial$44.991 Year

Questions

Is FIT free?
FIT is free to download, with no in-app purchases.
Is Photo Inventory Retinelle free?
Photo Inventory Retinelle is free to download, with in-app purchases available.
Do FIT or Photo Inventory Retinelle have ads?
Neither FIT nor Photo Inventory Retinelle shows ads.
Which is updated more often, FIT or Photo Inventory Retinelle?
FIT ships an update fortnightly, and Photo Inventory Retinelle every 2 weeks. Most recently, FIT was updated on November 11, 2026 and Photo Inventory Retinelle on November 7, 2026.

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