eRelocation vs C21 One21
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eRelocation
This app allows enrolled real estate agents to manage referrals, submit updates, and record important notes. It provides a streamlined way to handle brokerage-assigned leads and track their progress.
- Access referrals
- Submit updates
- Add notes
- Submit OGR/AGR
- Brokerage integration
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If a brokerage has enrolled you, you can use this app to access your referrals, submit updates due or notes, or submit an OGR or an AGR. If you do not have access, please contact your brokerage's Relocation / Referral Department.
C21 One21
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Century 21 One21 2026 Welcome to the official event app for One21 — your all-access pass to the ultimate C21 experience! Designed exclusively for registered attendees, this app puts everything you need for the event right at your fingertips. Plan Your Experience Explore the full event schedule, customize your agenda, and stay up to date with real-time updates. Navigate with Ease Maps help you find your way around the venue, sessions, and key locations. Update your profile and connect with other attendees and start networking before you even arrive on-site! Note: This app is intended for registered One21 attendees only.
Screenshots
Verdict
eRelocation and C21 One21 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.
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.
eRelocation ships an update every 2 months, C21 One21 every 3 months. The most recent releases landed on September 18, 2026 and September 20, 2026 respectively.
| Parameter | eRelocation | C21 One21 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 9 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | ASK Real Estate Technology LLC | Century 21 Real Estate, LLC |
In-app purchases
eRelocation
No in-app purchases
C21 One21
No in-app purchases
Questions
Is eRelocation free?
Is C21 One21 free?
Do eRelocation or C21 One21 have ads?
Which is updated more often, eRelocation or C21 One21?
Other comparisons
