# eResource Scheduler vs Upstream

The clearest difference is update cadence: eResource Scheduler at every 6 days against Upstream's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

eResource Scheduler ships an update every 6 days, Upstream every 2 weeks. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | eResource Scheduler | Upstream |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/upstream-email/id6751403722/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Monetization | — | Free |
| Size | 49 MB | 87 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Enbraun Technologies Private Limited](https://appshunter.io/developer/1823865876) | [Upstream Labs](https://appshunter.io/developer/1834893204) |

## What reviewers say

### eResource Scheduler

[App page](https://appshunter.io/ios/app/eresource-scheduler/id6748007608)

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

**In-app purchases:** none


### Upstream

[App page](https://appshunter.io/ios/app/upstream-email/id6751403722)

This AI-powered inbox automatically organizes emails, drafts replies in your unique writing style, and sends follow-ups. It learns your workflow to minimize distractions and ensure no important messages are missed.

**Highlights:** AI email triaging, Personalized draft writing, Automated follow-ups, Self-organizing inbox, Learns user workflow

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

**In-app purchases:** none


## Frequently asked questions

### Is eResource Scheduler free?

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

### Is Upstream free?

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

### Do eResource Scheduler or Upstream have ads?

Neither eResource Scheduler nor Upstream shows ads.

### Which is updated more often, eResource Scheduler or Upstream?

eResource Scheduler ships an update every 6 days, and Upstream every 2 weeks. Most recently, eResource Scheduler was updated on October 7, 2026 and Upstream on October 2, 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.*