# i vs RFID (NFC) Temp Logger

i and RFID (NFC) Temp Logger are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | i | RFID (NFC) Temp Logger |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 8 MB | 2 MB |
| Requires iOS | 14.0 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fujitsu Limited](https://appshunter.io/developer/453694053) | [SATO CORPORATION](https://appshunter.io/developer/528168978) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-filter-for-fmrm/id705058684)

**Features:** macOS Compatibility

**In-app purchases:** none


### RFID (NFC) Temp Logger

[App page](https://appshunter.io/ios/app/rfid-nfc-temp-logger/id1562959704)

**In-app purchases:** none


## Frequently asked questions

### Is i free?

i is free to download, with no in-app purchases.

### Is RFID (NFC) Temp Logger free?

RFID (NFC) Temp Logger is free to download, with no in-app purchases.

### Do i or RFID (NFC) Temp Logger have ads?

Neither i nor RFID (NFC) Temp Logger shows ads.

### Which is updated more often, i or RFID (NFC) Temp Logger?

i ships an update every 3 months, and RFID (NFC) Temp Logger every 3 months. Most recently, i was updated on October 14, 2026 and RFID (NFC) Temp Logger on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*