# Ισοκράτης IsoFAn vs PellaFM 103.3

The clearest difference is price: PellaFM 103.3 at $4.99 against Ισοκράτης IsoFAn's $70.00. PellaFM 103.3 also leads on update cadence (every 8 days vs every 3 months). Ισοκράτης IsoFAn's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On ads and in-app purchases there is nothing between them.

Ισοκράτης IsoFAn costs $70.00 and PellaFM 103.3 $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Ισοκράτης IsoFAn ships an update every 3 months, PellaFM 103.3 every 8 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Ισοκράτης IsoFAn | PellaFM 103.3 |
| --- | --- | --- |
| Price | $70.00 | **$4.99** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/isofan/id6443764042/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 8 days** |
| Monetization | Paid | — |
| Size | 86 MB | 20 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [GEORGIOS FANARAS](https://appshunter.io/developer/1649119855) | [Theodoros Vasileiadis](https://appshunter.io/developer/1517881559) |

## What reviewers say

### Ισοκράτης IsoFAn

[App page](https://appshunter.io/ios/app/isofan/id6443764042)

This app provides Byzantine isokrattima with a human-like voice, aiding in Byzantine chant training. It allows for tone adjustments per molecule and semitone, customizable button layouts, and colored buttons.

**Highlights:** Byzantine isokrattima with human voice, Chant training assistance, Adjustable tone per molecule, Adjustable tone per semitone, Customizable button layout, Color-coded buttons

**Features:** Vision Pro support

**In-app purchases:** none


### PellaFM 103.3

[App page](https://appshunter.io/ios/app/pellafm-1033/id6756916651)

**In-app purchases:** none


## Frequently asked questions

### Is Ισοκράτης IsoFAn free?

Ισοκράτης IsoFAn costs $70.00, with no in-app purchases.

### Is PellaFM 103.3 free?

PellaFM 103.3 costs $4.99, with no in-app purchases.

### Do Ισοκράτης IsoFAn or PellaFM 103.3 have ads?

Neither Ισοκράτης IsoFAn nor PellaFM 103.3 shows ads.

### Which is updated more often, Ισοκράτης IsoFAn or PellaFM 103.3?

Ισοκράτης IsoFAn ships an update every 3 months, and PellaFM 103.3 every 8 days. Most recently, Ισοκράτης IsoFAn was updated on November 3, 2026 and PellaFM 103.3 on October 31, 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.*