Operated by Airbridge (AB180 Inc.), a mobile measurement partner that appears in this comparison. How we compareReviewed 2026-11-10
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Glossary

Lock-in

Reviewed 2026-11-10 · By the Airbridge team, which operates this site

Definition

Lock-in is the total cost of leaving a vendor. With an MMP it comes from four places: the contract term and notice period, tracking links that live on the vendor's domain, historical data that stays in the vendor's system, and the engineering work tied to its SDK. The higher that cost, the less freedom you have at renewal.

How it works

Lock-in builds up quietly as you use the product. Each new link, saved report and connected ad channel adds a little to what a move would cost.

  • Contract. A fixed term, automatic renewal and a notice deadline decide when you are allowed to leave. Compare this with monthly billing.
  • Links. Links on a vendor-owned domain cannot be pointed elsewhere, so every printed or sent copy is tied to that vendor.
  • Data. History that can only be viewed in a dashboard is lost when access ends. Event-level export may be a paid extra.
  • Code. Event calls and deep link handling are written against one SDK.

When it matters

You feel lock-in at renewal and whenever your needs change. A team with low lock-in can respond to a price rise by leaving. A team with high lock-in usually has to accept it. It is worth checking before you sign with any vendor, including the one you are moving to.

You can lower it without switching: use a link domain you own, export reports on a schedule, document your event names and wrap SDK calls in one module of your own code.

How it relates to attribution

Attribution data is only useful as a continuous record, and that continuity is the strongest tie of all. The longer your history sits in one system, the more a break costs. Weigh that when you read when switching is not worth it, and see what happens to historical data for what can be saved.

More terms

  • Glossary

    Parallel run

    A parallel run is the period in an MMP migration when the old and new SDK both collect data, so you can compare their numbers before switching.

  • Glossary

    Discrepancy

    A discrepancy is the gap between what an MMP reports and what an ad platform reports for the same campaign. The usual causes and when to worry.

  • Glossary

    Cutover

    Cutover is the point in an MMP migration when tracking links and ad channel connections move from the old MMP to the new one. What changes and how to plan it.

  • Alternatives

    Best MMP alternative to AppsFlyer and Adjust

    What to check in an AppsFlyer or Adjust plan, four alternatives with public entry prices, and a short checklist for switching MMPs.

Cite this page

Airbridge. “Lock-in.” bestmmpalternative.com. Reviewed 2026-11-10. https://bestmmpalternative.com/glossary/lock-in