The Truth About Unlimited Internet in Kenya: Hidden Limits ISPs Don’t Tell You

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You paid for super-fast unlimited WI-FI, but by the end of the month before it expires, Netflix is buffering, YouTube is at the lowest resolution, and your downloads and uploads are crawling with super high latencies.

Most ISPs use the term “unlimited to lure customers in signing up for their internet, only for you to realise the internet you have been paying for is not actually unlimited.

The ISP's best-kept secret when they are selling you their internet is the Fair Usage Policy (FUP), which they will never mention to you until you visit their website and check the terms & conditions.

In today’s article, we are going to expose the exact data caps and throttled speeds of ISPs that don’t put on their flyers.

The Reality of “Unlimited Internet in Kenya”: What is FUP?

FUP  stands for Fair Usage Policy. In simple terms, it is the rule that internet providers use to make sure a few heavy users don’t hog all the network speed and ruin the experience of everyone.

ISPs use Fair Usage Policy mainly to protect their networks from being overloaded by a small number of heavy users, even though they love to market plans as “Unlimited.” 

The truth is, bandwidth isn’t infinite, so FUP lets them quietly slow speeds once usage crosses a certain threshold to keep the network usable for everyone else.

It’s less about generosity and more about control, balancing performance while avoiding the cost of constantly upgrading infrastructure, all wrapped in wording that sounds better than “soft data caps.”

Read Also: Safaricom Quietly Boosts WiFi Speeds in Kenya: Same Price, Up to 150Mbps

Breaking Down ISP Hidden Limits: Who Caps What?

Safaricom Home Fibre: The 1.5TB Reality Check

Safaricom is arguably the best internet service provider in Kenya. You see, in November last year, the company increased the FUP up to 15TB, which, for an average user, is basically unlimited, and everyone was excited because Safaricom was getting its act together.

That excitement was, however, short-lived, because a few days ago, Safaricom reduced the FUP from 15TB to a whopping 1.5TB on the basic package, which is a 90% reduction.

In this case, when you hit the FUP, your speeds will be severely throttled. For example, the 40Mbps basic package has 1.5TB, and when you exhaust it, the speeds will be throttled to a record-breaking 4 Mbps.

What does this mean? If you are a heavy user, you constantly stream 4k content, update console games such as Call of Duty, which have massive updates, or you live in a household with many devices, then your best bet is to upgrade to a higher package, which has a higher FUP.

Zuku Fibre: Aggressive Throttling Thresholds

On the other hand, Zuku, just like Safaricom, has a Fair Usage Policy that identifies the extremely heavy users and manages their bandwidth to protect the services to all customers.

Zuku FUP states that everyone is sharing the same internet capacity. If a few users consume a lot more data than others, they can slow things down for everyone. 

The Fair Use Policy is meant to keep things balanced. 

When someone uses too much, the network may reduce their speeds so other users can still have a stable connection. It is simply a way of making sure heavy users do not affect the experience for everyone else.

In other words, the more you use it, the less speed priority you get.

Zuku has received its fair share of complaints from its users, most users complaining that the speeds they are getting are less than what they paid for.

One user in particular on Reddit described an issue they had with Zuku. The user explains that most of the time, they are getting 15 Mbps when they should be getting 30 Mbps. 

They contacted Zuku's customer service, and they reset the router, but as soon as they got off the line, they performed another speed test, and the speeds went back to 15Mbps, and it kept on dropping.

JTL Faiba: Speed Over Uncapped Freedom?

Unlike Safaricom and Zuku, which publicly disclose their Fair Usage limitations, JTL  Faiba doesn’t disclose its FUP, which is absurd since customers need to know what they are paying for.

Anyway, I did a bit of digging and found Jamii Telecommunication Limited's Fair Usage Policy ensures equal data distribution by monitoring bandwidth usage by preventing heavy internet users from affecting network quality, just like Zuku.

Users reaching the Fair Usage Level on the home and business packages can still access the internet, but their priority is lowered during busy periods. JTL, while monitoring your usage, will send you reports and advise you accordingly.

JTL FUP is applied daily and is reset at midnight.

Keep in mind that while the policy prohibits illegal activities of network abuse, such as mail bombing and distribution of pirated, offensive material, JTL reserves the right to enforce the policy through warnings and service termination.

Starlink in Kenya: The Satellite Alternative

Starlink is the new kid on the block, which launched back in 2023, and it caused a buzz among Kenyans who began switching from the current ISPs to Starlink.

Anyway, the Starlink FUP approach comes down to one simple idea: the network has limits, and they need to spread it across everyone using it.

Even though the company keeps launching more satellites, capacity is still finite, especially in busy areas or during peak hours, when the demand is too high, they manage speeds to keep the service usable for the largest number of people.

Starlink is also making it clear that they are not picking favourites. This simply means that your traffic, whether you are streaming, gaming, or browsing, won’t slow you down based on what you are doing online, but because of overall network conditions.

At the same time, Starlink keeps the right to step in when needed, and that can mean adjusting speeds to reduce congestion, protect the network from threats, or stay within the legal requirements.

It’s less about punishing users but more about keeping the system stable.

When it gets more practical, it is in how your plan affects your experience. Starlink distributes priority based on what you pay for.

Higher-tier plans get better access during busy periods, while lower-tier plans may notice slower speeds when the network is crowded, so while it is framed as fairness, it is also structured around tiers of service.

Is "True" Unlimited Internet in Kenya a Myth?

Now, home and residential internet are built on shared infrastructure.

If you don’t know it yet, you and your neighbours are using the same pool of bandwidth, so ISPs have to manage it, and that is where FUP comes in.

Even if the plan says “unlimited,” there is almost always a threshold where speeds can be reduced to keep the network stable, and this is standard across the industry, not just in Kenya. It is how providers keep costs while serving thousands of users on the same network.

Enterprises, on the other hand, are a completely different product. 

Here is a business that pays for a fixed amount of bandwidth that is reserved only for them; there is no sharing with others, no showdowns during peak hours, and no Fair Usage Policy.

What you pay for is what you get, all the time, and that is why these connections are used by banks, offices, and data-heavy operations that cannot afford inconsistencies.

Can you guess the catch? Yup, you guessed it. It is the price; dedicated lines are extremely expensive, often costing several times the home fibre packages for far less raw speed on paper. You are essentially paying for consistency, guaranteed uptime, and priority support, not just speed.

So the reality is simple, if you are on a typical home internet plan, you are on a shared network, and FUP is part of teh deal, whether it’s clearly advertised or not.

Truly unlimited internet only exists at corporate pricing, and most home users are not paying anywhere near that level.

Conclusion

Key Takeaways

- "Unlimited" actually means "Unlimited up to a certain data point."

- 1TB is the standard ceiling for most mid-tier Kenyan ISPs.

- Throttled speeds (usually 1-3Mbps) make modern web browsing incredibly frustrating.

My honest advice? Stop shopping purely on the advertised speeds and start looking for FUP limits.

For big families with multiple devices, I suggest you go with anything that is 50Mbps and above, which will be able to handle multiple users all without buffering an if you have deeper pockets, you can opt for enterprise options to avoid mid-month bottlenecks.