MPDX vs Nereus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MPDX
This app helps missionaries track their ministry development interactions digitally. It integrates with social media and digital communication, allowing users to log calls, texts, emails, and tasks on the go. An account must be created on the website before using the mobile app.
- Track MPD calls, texts, emails, and tasks
- Integrates with social media
- Digital communication logging
- Accessible on the go
- Weave MPD into daily life
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NOTE: You must first create an account on http://mpdx.org on your computer or tablet before you can login on MPDX the mobile app. There is no cost to use MPDX. It’s easy for missionaries to disconnect MPD from our daily lives because we are always on the go. And so many of our personal interactions are not digital! MPDX is a highly accessible tool that integrates MPD interactions with social media and digital communication. This app allows you to easily track your MPD calls, texts, emails, and tasks when you are on the go, making it easy to weave MPD into our daily lives.
Nereus
This app helps you focus by blocking distracting applications on your iPhone during dedicated work sessions. It syncs with a desktop application to automatically lock down your phone, allowing you to choose which apps to block and stay productive.
- Blocks distracting apps
- Deep Work mode
- Cross-device sync
- QR code pairing
- Customizable app blocking
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~REQUIRES NEREUS DESKTOP APP~ Nereus helps you do your best work by blocking distracting apps on your iPhone during Deep Work sessions. DEEP WORK MODE When you're ready to focus, Nereus shields distracting apps so you can't access them until your session ends. No willpower needed - just scan the QR code from the Nereus Mac app and your phone locks down automatically. CROSS-DEVICE SYNC Pair your iPhone with the Nereus desktop app via QR code. Start a session on your Mac or Windows and your phone blocks until you complete your focus session. APP BLOCKING Select exactly which apps distract you most. Social media, messaging, games - block what you need, keep what matters. STAY DEEP Stay where digital distractions aren't - at the bottom of the sea.
Screenshots
Verdict
The clearest difference is rating: Nereus at 5.0 against MPDX's 2.9. MPDX's advantage is update cadence (fortnightly vs every 2 months) and ratings volume (41 vs 1). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Nereus holds the better App Store score, 5.0 against 2.9. That said, the two scores are not equally well evidenced: MPDX has 41 ratings behind it against 1, so its average is the more settled of the two.
MPDX ships an update fortnightly, Nereus every 2 months. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.
| Parameter | MPDX | Nereus |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (41 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 29.2% of reviews | — |
| Number of ratings | 41 — better | 1 |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 41 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Cru | Joseph Balkan |
Customer experience
MPDX
Nereus
In-app purchases
MPDX
No in-app purchases
Nereus
No in-app purchases









