# SSIAM OTG vs Fast e

The clearest difference is iOS requirement: Fast e at 10.0 against SSIAM OTG's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

SSIAM OTG ships an update every 2 months, Fast e monthly. The most recent releases landed on October 20, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | SSIAM OTG | Fast e |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/ssiam-otg/id1484302363/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 99 MB | 132 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SSI Securities Corporation](https://appshunter.io/developer/1185161552) | [Fast Software Joint Stock Company](https://appshunter.io/developer/1484779984) |

## What reviewers say

### SSIAM OTG

[App page](https://appshunter.io/ios/app/ssiam-otg/id1484302363)

This app allows investors to trade open-ended funds directly from their mobile devices. It facilitates quick and secure subscription and redemption orders for specific funds, along with daily portfolio tracking and performance analysis.

**Highlights:** Trade open-ended funds, Subscription and redemption orders, User-friendly interface, 2-layer security, Quick order placement, Daily portfolio tracking, Investment performance monitoring

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Fast e

[App page](https://appshunter.io/ios/app/fast-e-invoice/id1484779985)

This application allows businesses to create and manage electronic invoices. It integrates with other accounting and financial management software to streamline invoice generation and submission. Designed for companies with high invoice volumes and in-house IT teams.

**Highlights:** Electronic invoice creation, Integration with accounting software, Cloud server infrastructure, Self-managed infrastructure, Suitable for high invoice volumes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SSIAM OTG free?

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

### Is Fast e free?

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

### Do SSIAM OTG or Fast e have ads?

Neither SSIAM OTG nor Fast e shows ads.

### Which is updated more often, SSIAM OTG or Fast e?

SSIAM OTG ships an update every 2 months, and Fast e monthly. Most recently, SSIAM OTG was updated on October 20, 2026 and Fast e on October 13, 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.*